# SDR QMLA2009081109026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2009
- Submitted: August 14, 2009
- Operation: Air carrier
- Aircraft: [N155SC](https://openairdocs.org/aircraft/N155SC), registered now
- Make and model: Bolkms BK117B1
- Aircraft serial: 7173
- Aircraft time: 10,846 hours
- System (JASC): [2701 · Control Column Section](https://openairdocs.org/jasc/2701)
- Part: Lock
- Part number: 1178115501
- Condition: Unserviceable
- Location: Cyclic
- Component: Socket
- Component part number: 1178111101
- Stage of operation: LD
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2009081109026

## Discrepancy

FELT CYCLIC POP IN VERTICAL DIRECTION AT THE BOTTOM OF A SIMULATED SINGLE ENGINE LANDING FROM AN ABORTED MAXIMUM PERFORMANCE TAKEOFF PROFILE.  AFTER LANDING, WAS ABLE TO REMOVE COPILOT CYCLIC FROM MOUNT WITH SLIGHTEST OF EFFORT.

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