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Wheel chock left in wheel well prevented left gear from retracting in flight. Aircraft returned to airport.
| Attributes | |
| ACN | 327871 |
| Time | |
| Date | 199602 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lan |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Bird Dog 305/321 |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 327871 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
On feb/wed/96 I was the mechanic working at the gate. Aircraft abcd was towed onto the gate for departure on flight xxy to YYY, by another maintenance crew. As per usual procedures, I completed a walkaround inspection and found everything to be in airworthy condition. Captain completed a walkaround inspection after mine and did not find anything out of the ordinary either. I dispatched the aircraft using normal procedures. Later, I heard over the radio the plane could not retract its left main gear, and they were returning to the field. Upon return to gate other mechanics found a black rubber wheel chock wedged between the strut and side-strut, which caused the gear retract problem. If the wheel chock was in the strut before departure, then 4 people missed it. The captain, me and the 2 mechanics who towed it over from the hangar.
Original NASA ASRS Text
Title: WHEEL CHOCK LEFT IN WHEEL WELL PREVENTED L GEAR FROM RETRACTING IN FLT. ACFT RETURNED TO ARPT.
Narrative: ON FEB/WED/96 I WAS THE MECH WORKING AT THE GATE. ACFT ABCD WAS TOWED ONTO THE GATE FOR DEP ON FLT XXY TO YYY, BY ANOTHER MAINT CREW. AS PER USUAL PROCS, I COMPLETED A WALKAROUND INSPECTION AND FOUND EVERYTHING TO BE IN AIRWORTHY CONDITION. CAPT COMPLETED A WALKAROUND INSPECTION AFTER MINE AND DID NOT FIND ANYTHING OUT OF THE ORDINARY EITHER. I DISPATCHED THE ACFT USING NORMAL PROCS. LATER, I HEARD OVER THE RADIO THE PLANE COULD NOT RETRACT ITS LEFT MAIN GEAR, AND THEY WERE RETURNING TO THE FIELD. UPON RETURN TO GATE OTHER MECHS FOUND A BLACK RUBBER WHEEL CHOCK WEDGED BTWN THE STRUT AND SIDE-STRUT, WHICH CAUSED THE GEAR RETRACT PROB. IF THE WHEEL CHOCK WAS IN THE STRUT BEFORE DEP, THEN 4 PEOPLE MISSED IT. THE CAPT, ME AND THE 2 MECHS WHO TOWED IT OVER FROM THE HANGAR.
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.