Service difficulty report · Control Panel · Boeing 737890
FAA SDR system
- Difficulty date
- June 1, 2018
- Submitted
- June 4, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35190
- Aircraft time
- 39,761 hours, 12,087 cycles
- Part
- Control Panel
- Part number
- 8221567102
- Part serial
- 16N1KR
- Condition
- Failed
- Location
- Autopilot
- Part time
- 40,519 hours, 11,848 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT A WILL NOT ENGAGE. ACFT GROUNDED. FAULT REVIEW MESSAGES 22-11625, 22-11626, 22-11254, 22-11259. DFCS BITE GRP 70 MCP TESTS FAIL. REPLACED THE MCP IAW AMM 22-11-34, INSTALLATION TEST PASSED. BITE GRP 70 ALSO PASSED. ADDITIONAL LLM TESTS BITE GRP 32, LRU REPLACEMENT TEST FOR MCP AND GRP 49 LAND VERIFY PASSED.