Case Report Of The Alaska-Airline Disaster

Case Report Of The Alaska-Airline Disaster

Free Samples

Case Report Of The Alaska-Airline Disaster

.cms-body-content table{width:100%!important;} #subhidecontent{ position: relative;
overflow-x: auto;
width: 100%;}

Case Report Of The Alaska-Airline Disaster

0 Download5 Pages / 1,119 Words

Discuss about the Case Report of the Alaska-Airline Disaster.

This case report discusses about the Alaska-airline crash that has occurred on Jan, 31, 2000 at California. The causes, contributing factors, potential hazards and safe- guards that were ignored in accordance with air crash were discussed. This incident teaches a great lesson to the world to prevent future air- accidents and the inadequacies in policies to prevent loss of life and property.    
Case Report of the Alaska-Airline disaster
Disaster- Summary
The most miserable disaster of Alaska-Airline took place on 31st January, 2000 at approximately 1621 Pacific- Standard time. The flight 261 that involves MD (McDonnell Douglas) – 83, N963AS was crashed at approximately 2.7 miles in the Pacific Ocean specifically at the north side of Anacapa- island of California. All the people in the flight that includes two pilots, three crew-members of cabin as well as 83 passengers were killed with destruction of the flight by impact forces (Carmody, 2002). There were dozen causes that have contributed to this disaster and have taught a great lesson about flight maintenance.  
Causes for Disaster
The main cause is that the in-flight failure of the acme- nut threads that is present on the jack-screw assembly (trim system) of the horizontal-stabilizer of flight has occurred. This has lead to the loss of pitch control of the flight. NTSB (2003) has stated that the jack-screw assembly is the most integral as well as crucial part of the trim- system of horizontal-stabilizer that acts as a critical airplane system and the destruction of this jack-screw assembly has caused the flight disaster. Moreover, the thread failure has occurred due to the insufficient lubrication that has lead to the excessive wear of the Alaska Airlines (Cockpit database, 2000).
Contributing Factors
Basically, there was a fault in the fundamental MD- 83 flight design as it has no fail-safe design to counteract the thread loss of the total acme-nut that has lead to the catastrophic effects. In this disaster, improper adherence to the maintenance process as well as inspection of the jack-screw parts has exacerbated the design fault and has resulted in crash (Carmody, 2002). Another factor that has contributed was the extended interval for lubrication process. The Federal aviation-administration (FAA) has approved the extended lubrication interval that has contributed to the missing or improper lubrication. This has resulted in the complete wear of the threads of acme-nut. Further, increased interval for end- play check with approval from FAA for extension has allowed to the excessive wear that has progressed to failure without detecting the flaw.
Safety Factors Ignored
The horizontal-stabilizer has stopped working to the commands of the pilot and they were unable to rule out the cause. The acme- nut threads have worn inside the horizontal stabilizer and were sheared off completely. Then, the acme-screw and nut has jammed that has prevented the movement of horizontal-stabilizer. Later, the jam was overcome that has allowed the acme-screw to pull acme-nut causing the airplane to pitch downward (NTSB, 2003). It had lead to the (low- cycled fatigue) fracture of the torque tube again lowering the pitch from which regaining is impossible.  The use of auto-pilot at the time of horizontal stabilizer jam was inappropriate. Moreover, lack of checklist to land at these circumstances is an additional drawback. The pilots were not provided with clear guidelines to avoid experimenting with improper troubleshooting measures (Woltjer, 2007). The slats and flaps should have extended by the captain when the flight was controlled by the configuration after initial drive. The acme-nut threads were found to have worn extensively due to ineffective lubrication on the acme parts that have lead to the disaster. The recovered acme showed dried degraded grease that suggests that, it was not greased recently. The post-accident interviews of SPO-mechanic indicated that they had no knowledge to lubricate acme (NTSB, 2003). The safety board concluded that inadequate lubrication and lack of standard measures have lead to the accident.

Fig: 1 shows acme-nut with plugged grease
Increased pressure in the flight maintenance area in correcting, maintaining and delivering the flight in given time has contributed to this disaster. In this disaster, they have falsified the records that the flight has passed through the inspection process due to the increased pressure on them to make a scheduled return (Carmody, 2002). The measurements have showed that the jack-screw was in the brink to wear out and requires to be replaced by a newer jack-screw: but as it may delay the departure time, they have altered the record to be airworthy (ATEC, 2005). The maintenance persons don’t have assertiveness to speak about the importance of lubrication and replacing the wear to the company.  The maintenance personnel have not helped the pilots when they were at horizontal-stabilizer problems. The safety issues in this accident include improper lubrication with inspection of the jack-screw, extended end-play check-intervals, over-haul procedures of jack-screw and design with certification of horizontal-stabilizer, maintenance program and FAA’s inadequacies has lead to disaster.
Lessons Learned
Standards should be issued to pilots with the instructions to handle mal-functioning situations. NTSB (2002) ordered MD flights to replace dried greases with fresh grease. The size of the access-panel was increased to lubricate the jack-screw properly (FAA, 2002). The lubrication procedure for jack-screw was established as an inspection item to be signed by an inspector. The existing intervals were reviewed to identify the fault in the flight components. NTSB (2002) has conducted an evaluation and has issued a report with recommendations for maintenance. Improving fail- safe mechanism in MD design, promoting end-play check interval, issuing newer certification regulations and policies for horizontal stabilizers ensures safe air-travel.
ATEC. (2005) Incorporating Air Transport Association Codes into Maintenance Curriculum, ATEC Journal, 26 (2). Available from Aviation Technician Education Council [Accessed 28/02/17]
Carmody, C.J. (2002) Aircraft Accident Incident Report. Loss of Control and Impact with Pacific Ocean Alaska Airlines Flight 261 McDonnell Douglas MD-83, N963AS About 2.7 Miles North of Anacapa Island, California January 31, 2000, National Transportation Safety Board, Washington, DC:  National Transportation Safety Board. [Accessed 28/02/17]
Cockpit database. (2000) Cockpit voice recorder database. Available from [Accessed 28/02/17]
FAA. (2002) Accident Board Recommendations, U.S. Department of Transportation. Available from [Accessed 28/02/17]
NTSB. (2003) Loss of control and impact with Pacific Ocean, Alaska Airlines Flight 261, McDonnell Douglas MD-83, N963AS, about 2.7 miles north of Anacapa Island, California, January 31, 2000 (Aircraft Accident Report No. NTSB/AAR-02/01), National Transportation Safety Board. Washington, DC: National Transportation Safety Board [Accessed 28/02/17]
Woltjer, R., & Hollnagel, E. (2007) The Alaska Airlines Flight 261 accident, A systemic analysis of functional resonance. Proceedings of the 2007 (14th) International Symposium on Aviation Psychology (ISAP), pp. 763-768. Available from [Accessed 28/02/17]

Free Membership to World’s Largest Sample Bank

To View this & another 50000+ free samples. Please put
your valid email id.


Yes, alert me for offers and important updates


Download Sample Now

Earn back the money you have spent on the downloaded sample by uploading a unique assignment/study material/research material you have. After we assess the authenticity of the uploaded content, you will get 100% money back in your wallet within 7 days.

UploadUnique Document

DocumentUnder Evaluation

Get Moneyinto Your Wallet

Total 5 pages


*The content must not be available online or in our existing Database to qualify as

Cite This Work
To export a reference to this article please select a referencing stye below:


My Assignment Help. (2018). Case Report Of The Alaska-Airline Disaster . Retrieved from

“Case Report Of The Alaska-Airline Disaster .” My Assignment Help, 2018,

My Assignment Help (2018) Case Report Of The Alaska-Airline Disaster [Online]. Available from:[Accessed 18 December 2021].

My Assignment Help. ‘Case Report Of The Alaska-Airline Disaster ‘ (My Assignment Help, 2018) accessed 18 December 2021.

My Assignment Help. Case Report Of The Alaska-Airline Disaster [Internet]. My Assignment Help. 2018 [cited 18 December 2021]. Available from:

.close{position: absolute;right: 5px;z-index: 999;opacity: 1;color: #ff8b00;}


Thank you for your interest
The respective sample has been mail to your register email id


$20 Credited
successfully in your wallet.
* $5 to be used on order value more than $50. Valid for
only 1

Account created successfully!
We have sent login details on your registered email.



For years, has been operating as one of the cheap assignment help providers in the USA. We are one of the best college paper writing services that keep service price minimal. We do not let the affordability of our service to hamper the standard of our work. We have separate teams of experts to provide report writing help . At, we believe in earning credibility, so students can pay for assignments only after getting satisfied solutions. Tough assignments bother you? Trust us with your project. You will not regret paying us to write assignments for you.

Latest Healthcare Samples

div#loaddata .card img {max-width: 100%;

5N1794 Safety And Health At Work
Download :
0 | Pages :

Course Code: 5N1794
University: University College Cork is not sponsored or endorsed by this college or university

Country: Ireland

Assignment 1
Answer to question 1
I have conducted a survey at my workplace maned Lady’s Hospice and Care Services to observe the working environment. The aim of the survey is to find if it is a safe, healthy, secured and fulfilling place to work. A visual survey was conducted to locate and record the safety signs in the workplace. The objective of the survey is to observe and list different types of signs, location, their prom…
Australia Maple Ridge Management Introduction to film studies University of New South Wales Masters in Business Administration 

400837 Health And Socio Political Issues In Aged Care
Download :
0 | Pages :

Course Code: 400837
University: Western Sydney University is not sponsored or endorsed by this college or university

Country: Australia

Palliative care services are designed to improve the life of patient with progressive disease. People receiving palliative care have illness that has no prospect of cure.  As per the World Health Organisation, palliative care is a care given to patient suffering from life threatening illness to improve their quality of life by preventing and providing relief from sufferings by early recognition , assessment and trea…
Australia Minchinbury Management University of New South Wales 

PUBH6304 Global Health
Download :
0 | Pages :

Course Code: PUBH6304
University: The University Of Newcastle is not sponsored or endorsed by this college or university

Country: Australia

Human Immunodeficiency Virus Infection and Acquired Immune Deficiency Syndrome (HIV/AIDS) is the spectrum of medical conditions caused due to human immunodeficiency virus (HIV) following which the patient suffers from a series medical complications due to suppression of the immune system of the body. With the progression of the disease, the patient is likely to suffer from a wide range of infections like tuberculosis and other opportu…
United States Newark Management University of New York Masters in Business Administration 

CON 321 Health Related Research
Download :
0 | Pages :

Course Code: CON321
University: University Of Southern Maine is not sponsored or endorsed by this college or university

Country: United States

Leadership in the hospital is the ability to influence the staff toward providing quality health care. Leadership involves influencing human behavior to create a positive working environment (Langlois, 2012). Good leadership enables healthy relationships among staffs in the hospital enhancing quality delivery of health care services. Leadership is responsible to building teams that have trust, respect, support and effecti…

BL9412 Public Health
Download :
0 | Pages :

Course Code: BL9412
University: University Of The West Of England is not sponsored or endorsed by this college or university

Country: United Kingdom

According to the researchers, it can be said that the management of the health care organizations has become a difficult task nowadays and the reason behind this is the occurrence of various issues in this sector (Hall et al., 2014). Therefore, the administrative employees of the organization should incorporate various revolutionized strategies for enriching the worth of care provided by the hospital to its clients and re…
Australia Ryde Management Information system strategy University of New South Wales (UNSW) Masters in Business Administration 


Our Essay Writing Service Features

Qualified Writers
Looming deadline? Get your paper done in 6 hours or less. Message via chat and we'll get onto it.
We care about the privacy of our clients and will never share your personal information with any third parties or persons.
Free Turnitin Report
A plagiarism report from Turnitin can be attached to your order to ensure your paper's originality.
Safe Payments
The further the deadline or the more pages you order, the lower the price! Affordability is in our DNA.
No Hidden Charges
We offer the lowest prices per page in the industry, with an average of $7 per page
24/7/365 Support
You can contact us any time of day and night with any questions; we'll always be happy to help you out.
$15.99 Plagiarism report
$15.99 Plagiarism report
$15.99 Plagiarism report
$15.99 Plagiarism report
$3.99 Outline
$21.99 Unlimited Revisions
Get all these features for $65.77 FREE
Do My Paper

Frequently Asked Questions About Our Essay Writing Service

Academic Paper Writing Service

Our essay writers will gladly help you with:

Business Plan
Presentation or Speech
Admission Essay
Case Study
Reflective Writing
Annotated Bibliography
Creative Writing
Term Paper
Article Review
Critical Thinking / Review
Research Paper
Thesis / Dissertation
Book / Movie Review
Book Reviews
Literature Review
Research Proposal
Editing and proofreading
Find Your Writer

Latest Feedback From Our Customers

Customer ID:  # 678224
Research Paper
Highly knowledgeable expert, reasonable price. Great at explaining hard concerts!
Writer: Raymond B.
Customer ID: # 619634
Essay (any type)
Helped me with bear and bull markets right before my exam! Fast teacher. Would work with Grace again.
Writer: Lilian G.
Customer ID: # 519731
Research Paper
If you are scanning reviews trying to find a great tutoring service, then scan no more. This service elite!
Writer: Grace P.
Customer ID: #499222
Essay (any type)
This writer is great, finished very fast and the essay was perfect. Writer goes out of her way to meet your assignment needs!
Writer: Amanda B.
Place an Order

Calculate the price of your order

You will get a personal manager and a discount.
We'll send you the first draft for approval by at
Total price:

Powered by WhatsApp Chat

× How can I help you?