Service difficulty report · Power Supply · Boeing 737990ER
FAA SDR system
- Difficulty date
- September 20, 2026
- Submitted
- September 24, 2026
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40715
- Aircraft time
- 41,074 hours, 12,860 cycles
- Part
- Power Supply
- Part number
- D71702001
- Condition
- Inoperative
- Location
- Zone 200
- 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
EMERGENCY LIGHTS AT ROW 9 DEF AND 13 DEF NOT ILLUMINATED. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE EMERG LIGHTS POWER SUPPLY AND BATTERY PACK S/N 122749 ROW 7 DEF, OP CHECKS GOOD. IAW B737-900 AMM 33-51-06-960-805 STEP 4. E. 5, & 6.D AND 33-51-06-960-806 STEP 5. E. 4. 5. & 6.