What was found
DURING EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK, ALL 15 EMERGENCY LIGHT BATTERY PACKS FAILED THE TEST. MX REPLACED THE BATTERY PACKS AND ALL OPS WERE NORMAL AFTER REPLACEMENT.
- Difficulty date
- August 27, 2008
- Submitted
- September 12, 2008
- Operation
- Air carrier
- Aircraft
- N589NW
- Make and model
- Boeing 757351
- Aircraft serial
- 32989
- Aircraft time
- 21,064 hours, 6,704 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Failed
- Location
- Cabin
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.