Service difficulty report · Control Panel · Boeing 737990ER
FAA SDR system
- Difficulty date
- February 11, 2021
- Submitted
- February 23, 2021
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36354
- Aircraft time
- 26,937 hours, 8,585 cycles
- Part
- Control Panel
- Part number
- 8221567104
- Part serial
- 4859F7
- Condition
- Defective
- Location
- Cockpit
- Part time
- 13,302 hours, 4,244 cycles
- Stage of operation
- NR
- 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
VERTICAL SPEED WINDOW HAS SEGMENTS DISPLAYED INCORRECTLY. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONT PANEL REF B737-900 AMM 22-11-34-400-801, OPS NML REF AMM 22-11-34-740-801. ACCOMPLISHED DFCS MCP LRU REPLACEMENT TEST, GRP BITE 32, ALL TEST PASSED. ACCOMPLISHED DFCS LAND VERIFY TEST, GRP BITE 49, ALL TEST PASSED REF AMM 22-11-00-700-801.