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Pilot of an small transport twin engine aeronautical club aircraft experience 1 main landing gear collapse during landing resulting in aircraft damage. It was noted that a manufacturer's service bulletin was overlooked at the specified time in service calling for a landing gear retraction linkage bolt replacement.
| Attributes | |
| ACN | 260169 |
| Time | |
| Date | 199312 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : hmn |
| State Reference | NM |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : instructional |
| Make Model Name | Cessna Aircraft Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 45 flight time total : 950 flight time type : 30 |
| ASRS Report | 260169 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Minor damage to an aircraft, after left main gear collapsed upon landing. Gear collapsed due to a 'fork-bolt' breaking, which is attached to an extension/retraction arm. This is a time change item by manufacturer every 2000 hours time in service. This particular bolt had been cracked for some time and had not been replaced in accordance with 2000 hour time change. During further investigation it was found that some service manuals for the aircraft did not have the revision contained in them. Revision was dated 1975. Even the abq FSDO did not have revision. To prevent a further recurrence I would suggest all aircraft owners check their service manual to see if it contains revision.
Original NASA ASRS Text
Title: PLT OF AN SMT TWIN ENG AERO CLUB ACFT EXPERIENCE 1 MAIN LNDG GEAR COLLAPSE DURING LNDG RESULTING IN ACFT DAMAGE. IT WAS NOTED THAT A MANUFACTURER'S SVC BULLETIN WAS OVERLOOKED AT THE SPECIFIED TIME IN SVC CALLING FOR A LNDG GEAR RETRACTION LINKAGE BOLT REPLACEMENT.
Narrative: MINOR DAMAGE TO AN ACFT, AFTER L MAIN GEAR COLLAPSED UPON LNDG. GEAR COLLAPSED DUE TO A 'FORK-BOLT' BREAKING, WHICH IS ATTACHED TO AN EXTENSION/RETRACTION ARM. THIS IS A TIME CHANGE ITEM BY MANUFACTURER EVERY 2000 HRS TIME IN SVC. THIS PARTICULAR BOLT HAD BEEN CRACKED FOR SOME TIME AND HAD NOT BEEN REPLACED IN ACCORDANCE WITH 2000 HR TIME CHANGE. DURING FURTHER INVESTIGATION IT WAS FOUND THAT SOME SVC MANUALS FOR THE ACFT DID NOT HAVE THE REVISION CONTAINED IN THEM. REVISION WAS DATED 1975. EVEN THE ABQ FSDO DID NOT HAVE REVISION. TO PREVENT A FURTHER RECURRENCE I WOULD SUGGEST ALL ACFT OWNERS CHK THEIR SVC MANUAL TO SEE IF IT CONTAINS REVISION.
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.