Service difficulty report · Power Supply · Boeing 747412
FAA SDR system
- Difficulty date
- September 23, 2024
- Submitted
- September 24, 2024
- Operation
- Air carrier
- Make and model
- Boeing 747412
- Aircraft serial
- 26557
- Aircraft time
- 92,959 hours, 15,218 cycles
- Part
- Power Supply
- Part number
- BP573
- Part serial
- TLS31686
- Condition
- No Test
- 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
FOUND EMERGENCY LIGHT POWER SUPPLY FUNCTION CHECK FAIL (M5057, M5170, M5056).(<P>1. IAW AMM 33-51-04-002-009-001 & 33-51-04-402-012-001 REV=110 REPLACED EMERGENCY LIGHT BATTERY AT M5057 7 M5120. 2. IAW AMM 33-51-04-902-001-001 REV. 110 REPLACED EMERGENCY LIGHT BATTERY AT M5056. 3. IAW AMM 33-51-004-402-012-001 & 33-51-04-902-001-001 REV. 110 PERFORMED EMERGENCY LIGHT POWER SUPPLY AND BATTERY INSTALLATION TEST. THE RESULT WAS SATISFACTORY.</P>)