Event Details

Title:MLG failure, Boeing 737-500 EI-CDE, September 8, 2003
Micro summary:On landing this Boeing 737-500, the left main landing gear trunnion pin had sheared.
Event Time:2003-09-08 at 1804 UTC
File Name:2003-09-08-IE.pdf
Publishing Agency:Air Accident Investigation Unit (AAIU)
Publishing Country:Ireland
Report number:2005/006
Site of event:On landing at Cork airport
Departure:Dublin Airport, Dublin, Ireland
Destination:Cork International Airport, Cork, Ireland
Airplane Type(s):Boeing 737-500
Flight Phase:Landing
Operator(s):Aer Lingus
Type of flight:Revenue
Serious Injuries:0
Other Injuries:0
Executive Summary:As the undercarriage was selected down on approach to Runway (RWY) 17 at Cork Airport, the flight crew heard a loud bang from the landing gear. On arrival at the stand, an inspection was initiated, during which it was discovered that the LH main landing gear trunnion pin had sheared.

(b) Causes

3.6 The primary fracture, due to Stress Corrosion Cracking (SCC), may have been caused by the previous use of corrosion inhibiter JC5A.
Learning Keywords:Operations - Bang, pop, crack, sizzle!
Operations - Maintenance
Systems - Landing Gear
Systems - Landing Gear - MLG Collapse


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