# SDR 2011FA0000222

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2011
- Submitted: April 1, 2011
- Operation: General aviation
- Aircraft: N807FD
- Make and model: Airbus A310-324
- Registry model: [Airbus A310-324](https://openairdocs.org/model/airbus-industrie-a310-324) (OpenAirDocs)
- Aircraft serial: 492
- Engine: Pwa PW4152
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Jackscrew
- Part number: FE140
- Part serial: 125
- Condition: Out Of Position
- Location: Stabilizer
- Stage of operation: IN
- How discovered: 9
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000222

## Discrepancy

DURING O/H, MX PERFORMED ON THE SCREW JACK ASSY, FE140 SN 125, IDENTIFICATION OF THE WRONG POSITIONING OF THE RATCHET WHEEL (ITEM 3-620 OF CMM 27-44-13), ASSEMBLED ON THE OPPOSITE POSITION COMPARED TO THE SPEC MENTIONED ON THE CMM 27-44-13.  LETTER LT-S9-11-106 + TECH REPORT (RF-DSC-438/11 V00) THIS MISASSEMBLY LEADS TO AN INOPERATIVE NO-BACK OF THE SCREW JACK ASSY ON COMPRESSIVE LOAD DIRECTION ONLY.  THE PROBABLE CAUSE COULD BE A MISASSEMBLY OF THE RATCHET WHEEL DURING THE LAST REPAIR  OF THE SCREW JACK ASSY IN A REPAIR STATION THAT REMAINS UNDETERMINED. OPEN

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