Service difficulty report · Battery Pack · Boeing 737990ER
FAA SDR system
- Difficulty date
- February 2, 2026
- Submitted
- February 3, 2026
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41189
- Aircraft time
- 48,730 hours, 15,326 cycles
- Part
- Battery Pack
- Part number
- D71701100
- Condition
- Inoperative
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING T/C 78233001, FOUND R2 & L2 EMERGENCY LIGHTS INOPERATIVE. GROUNDED - YES. R & R THE EMERGENCY LIGHT R2 & L2 BATTERY PACK IAW AMM 33-51-06/401. OPS CHECKED REQUIRED. REPLACED THE LAMPS R2 SLIDE/OVERWING LIGHT IAW AMM 33-51-04. OPS TESTED GOOD.