 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
At the beginning of the takeoff roll (less than 5 KTS) the flight crew heard a loud bang from the left side of the airplane accompanied by the left main red landing gear unsafe light whereupon the flight crew stops the airplane to have maintenance pin the gear down.
| Attributes | |
| ACN | 305410 |
| Time | |
| Date | 199505 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 270 flight time total : 9500 flight time type : 1600 |
| ASRS Report | 305410 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff none taken : unable |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
At start of takeoff roll, a loud bang was heard from l-hand side of aircraft. Captain noticed l-hand red landing gear unsafe light illuminate and told first officer to stop takeoff (about 5 KIAS speed). Captain asked company mechanics to come install safety pins in landing gear and to inspect the gear while sitting on runway. Company mechanic told crew that the 'left inboard tire was flat, no other damage, and we were safe for taxi.' crew taxied aircraft back to gate and deplaned passenger. Company mechanic then informed captain that l-hand main gear trunnion pin was sheared and that he didn't see that damage on runway. Airport duty manager didn't think aircraft should have been taxied back under aircraft power. I feel mechanic led me down the primrose path.
Original NASA ASRS Text
Title: AT THE BEGINNING OF THE TKOF ROLL (LESS THAN 5 KTS) THE FLC HEARD A LOUD BANG FROM THE L SIDE OF THE AIRPLANE ACCOMPANIED BY THE L MAIN RED LNDG GEAR UNSAFE LIGHT WHEREUPON THE FLC STOPS THE AIRPLANE TO HAVE MAINT PIN THE GEAR DOWN.
Narrative: AT START OF TKOF ROLL, A LOUD BANG WAS HEARD FROM L-HAND SIDE OF ACFT. CAPT NOTICED L-HAND RED LNDG GEAR UNSAFE LIGHT ILLUMINATE AND TOLD FO TO STOP TKOF (ABOUT 5 KIAS SPD). CAPT ASKED COMPANY MECHS TO COME INSTALL SAFETY PINS IN LNDG GEAR AND TO INSPECT THE GEAR WHILE SITTING ON RWY. COMPANY MECH TOLD CREW THAT THE 'L INBOARD TIRE WAS FLAT, NO OTHER DAMAGE, AND WE WERE SAFE FOR TAXI.' CREW TAXIED ACFT BACK TO GATE AND DEPLANED PAX. COMPANY MECH THEN INFORMED CAPT THAT L-HAND MAIN GEAR TRUNNION PIN WAS SHEARED AND THAT HE DIDN'T SEE THAT DAMAGE ON RWY. ARPT DUTY MGR DIDN'T THINK ACFT SHOULD HAVE BEEN TAXIED BACK UNDER ACFT PWR. I FEEL MECH LED ME DOWN THE PRIMROSE PATH.
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.