Onur A306 at Jeddah on May 1st 2012, landed without nose gear
Last Update: June 18, 2024 / 18:56:05 GMT/Zulu time
Incident Facts
Date of incident
May 1, 2012
Classification
Accident
Airline
Onur Air
Departure
Madinah, Saudi Arabia
Destination
Jeddah, Saudi Arabia
Aircraft Registration
TC-OAG
Aircraft Type
Airbus A300
ICAO Type Designator
A306
On Jun 18th 2024 The Aviation Herald was able to obtain the final report concluding the probable causes of the accident were:
Cause Related Findings
- The NLG up-lock contained a spring, Part Number GA71102 that was broken as a result of fatigue initiated at the third coil of the spring.
- The spring had been broken for a prolonged period of time, as noted by the spring linear wear marks on the outside area of the spring coils.
- Damage observed on the NLG up-lock resulted from hard contact with the broken spring during normal NLG operation.
- The fracture process of the spring was initiated at the third coil level. At least 6000 cycles of fatigue (number of striations) have been estimated by fatigue striation measurements. The crack on the spring started on the internal surface of the spring which was not shot peened.
- The normal and free fall extensions of the NLG failed due to a mechanical blockage created by the broken spring jammed against the cam.
Other Findings
- The aircraft was properly certificated and had been maintained in accordance with approved procedures.
- The landing gear free fall cable system was out of tolerance by one (1) turn. This condition did not have an effect on the free fall operation of the landing gear system.
- The meteorological conditions did not contribute to this accident.
- The flight crew was certified and qualified on this type of aircraft.
- The flight crew performed their duties in accordance with the approved procedures.
- All communications with the Jeddah controllers and FRS were satisfactory.
- The FRS response was efficient and appropriate.
- Not all KAIA Airport Operations vehicles were equipped with rotary beacons.
- The Security surrounding the aircraft was inappropriate.
- The angle of the slides situated at the number 3 and 4 doors was beyond 60 degrees with the ground, with only the tip of the slide being self-supporting on the ground.
- The certification of the slides was not specific regarding the useable/recommended slope of the slide in relation to the ground.
- The certification of the slides did not specify what length of the slide should be self-supported on the ground in order to decelerate the fall/sl iding of a person.
- At the time of the accident, the Aircraft Inspection Program did not contain a scheduled maintenance action to inspect the springs for condition of the NLG up-lock.
- Effective 20 July, 2012, Airbus released a Mandatory Service Bulletin Number A300-32-6111 for the inspection of up-lock springs.
- Effective 30 July 2013, the European Aviation Safety Agency (EASA) issued an Airworthiness Directive Number (No.) 20130150 due to the reporting of NLG and Main Landing door and up-lock spring ruptures on some models of A300, A310 or A-300-600.
Incident Facts
Date of incident
May 1, 2012
Classification
Accident
Airline
Onur Air
Departure
Madinah, Saudi Arabia
Destination
Jeddah, Saudi Arabia
Aircraft Registration
TC-OAG
Aircraft Type
Airbus A300
ICAO Type Designator
A306
This article is published under license from Avherald.com. © of text by Avherald.com.
Article source
You can read 2 more free articles without a subscription.
Subscribe now and continue reading without any limits!
Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.
Send tip
Support AeroInside by sending a small tip amount.
Related articles
Onur A332 at Jeddah on May 21st 2018, landed without nose gear
An Onur Air Airbus A330-200 on behalf and in colours of Saudi Arabian Airlines, registration TC-OCH performing flight SV-3818 from Madinah (Saudi…
Onur A321 at Deauville on Sep 26th 2013, 3nm from touchdown just 49 feet above runway
An Onur Air Airbus A321-200, registration TC-OBZ performing flight 8Q-1985 from Izmir (Turkey) to Deauville (France) with 220 passengers and 7 crew,…
Onur A321 near Cologne on Jul 16th 2018, hydraulic failure
An Onur Air Airbus A321-200, registration TC-OBY performing flight 8Q-805 from Antalya (Turkey) to Cologne (Germany) with 217 passengers and 7 crew,…
Onur A321 near Volgograd on May 20th 2018, loss of cabin pressure
An Onur Air Airbus A321-200, registration TC-OBZ performing flight 8Q-877 from Antalya (Turkey) to Chelyabinsk (Russia) with 226 passengers and 8…
Onur A333 near Belgrade on May 28th 2016, loss of cabin pressure
An Onur Air Airbus A333-300, registration TC-OCA performing flight 8Q-814 from Munich (Germany) to Antalya (Turkey), was enroute at FL410 about 65…
Newest articles
KLM B738 at Amsterdam on Apr 28th 2025, flaps problem
A KLM Boeing 737-800, registration PH-BXN performing flight KL-1511 from Amsterdam (Netherlands) to Barcelona,SP (Spain), was climbing out of…
Vueling A320 at Barcelona on Apr 29th 2025, smoke in cabin
A Vueling Airbus A320-200, registration EC-OGD performing flight VY-1290 from Barcelona,SP to La Coruna,SP (Spain), was climbing out of Barcelona's…
Subscribe today
Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.
Pick your plan and subscribePartner

ELITE Simulation Solutions is a leading global provider of Flight Simulation Training Devices, IFR training software as well as flight controls and related services. Find out more.
SafetyScan Pro provides streamlined access to thousands of aviation accident reports. Tailored for your safety management efforts. Book your demo today
AeroInside Blog
Popular aircraft
Airbus A320Boeing 737-800
Boeing 737-800 MAX
Popular airlines
American AirlinesUnited
Delta
Air Canada
Lufthansa
British Airways