- Difficulty date
- February 22, 2021
- Submitted
- February 27, 2021
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 24,997 hours, 8,145 cycles
- Engine
- Cfmint CFM567B27E
- Part
- Dfgs
- Part number
- 8221567102
- Part serial
- 17HGVV
- Condition
- Failed
- Location
- Flight Deck
- Part time
- 35,825 hours, 14,309 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MODE CONTROL PANEL ALTITUDE WINDOW FLICKERING. GROUNDED - YES. INITIAL EVALUATION, CONFIRMED DEFECT. REMOVED AND REPLACED DFCS MCP IAW B737-900 AMM 22-11-34-000/400-801, FLICKERING STOPPED. PERFORMED DFCS LRU REPLACEMENT FOR MCP AND LAND VERIFY IAW AMM 22-11-00/201, ALL TESTS PASS.