A bac 167 on landing had the left main landing collapse incurring damage to the wingtip and the left landing gear door. Caused by left main gear actuator rod end not installed correctly.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	528212
Time
Date	200110
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Dusk
Aircraft 1
Operator	general aviation : personal
Make Model Name	British Aerospace Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	ground : parked ground : maintenance
Person 1
Affiliation	other
Function	maintenance : lead technician
Qualification	technician : inspection authority technician : powerplant technician : airframe
Experience	maintenance lead technician : 13 maintenance technician : 13
ASRS Report	528212
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	performance deficiency : repair performance deficiency : installation performance deficiency : logbook entry performance deficiency : testing performance deficiency : fault isolation
Supplementary
Problem Areas	Maintenance Human Performance Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

Landing gear actuator leaking found on annual inspection. I removed actuator and installed new packings, reassembled and reinstalled, extended and retracted 10 times and inspected. On third flight, left main landing gear would not lock. Upon removal and inspection of landing gear actuator, I found rod end worked out and failed to lock at main landing gear. Upon reviewing technical data, I discovered I did not safety wire actuator in a proper manner. Callback conversation with reporter revealed the following information: the reporter stated the left main landing gear collapsed incurring damage to the left wing tip tank and the left main gear door. The reporter said the cause of the incident was the main gear actuator rod end working loose and failing to lock in the down position. The reporter stated the actuator rod end worked loose because the safety wire was not installed. The reporter said the FAA has classified this as an incident.

Original NASA ASRS Text

Title: A BAC 167 ON LNDG HAD THE L MAIN LNDG COLLAPSE INCURRING DAMAGE TO THE WINGTIP AND THE L LNDG GEAR DOOR. CAUSED BY L MAIN GEAR ACTUATOR ROD END NOT INSTALLED CORRECTLY.

Narrative: LNDG GEAR ACTUATOR LEAKING FOUND ON ANNUAL INSPECTION. I REMOVED ACTUATOR AND INSTALLED NEW PACKINGS, REASSEMBLED AND REINSTALLED, EXTENDED AND RETRACTED 10 TIMES AND INSPECTED. ON THIRD FLT, L MAIN LNDG GEAR WOULD NOT LOCK. UPON REMOVAL AND INSPECTION OF LNDG GEAR ACTUATOR, I FOUND ROD END WORKED OUT AND FAILED TO LOCK AT MAIN LNDG GEAR. UPON REVIEWING TECHNICAL DATA, I DISCOVERED I DID NOT SAFETY WIRE ACTUATOR IN A PROPER MANNER. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE L MAIN LNDG GEAR COLLAPSED INCURRING DAMAGE TO THE L WING TIP TANK AND THE L MAIN GEAR DOOR. THE RPTR SAID THE CAUSE OF THE INCIDENT WAS THE MAIN GEAR ACTUATOR ROD END WORKING LOOSE AND FAILING TO LOCK IN THE DOWN POS. THE RPTR STATED THE ACTUATOR ROD END WORKED LOOSE BECAUSE THE SAFETY WIRE WAS NOT INSTALLED. THE RPTR SAID THE FAA HAS CLASSIFIED THIS AS AN INCIDENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.