SDR UIEA2023052200502

Service difficulty report · Battery · Boeing 74747UF

Difficulty date: May 17, 2023
Submitted: May 22, 2023
Operation: Air carrier
Aircraft: N499MC
Make and model: Boeing 74747UF
Aircraft serial: 29260
Aircraft time: 93,848 hours, 16,031 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: 20131A
Part serial: 91861
Condition: No Test
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

WHEN PERFORM EMERGENCY LIGHT BATTERY PACKS CAPACITY TEST FOUND M5168, M5169 & M5170 BATTERY FAIL(<P>1) IAW AMM 33-51-04-902-001-001 REV 107 R/R EMERGENCY LIGHT BATTERY ASSY AT M5168, M5169 & M5170. 2) IAW AMM 33-51-04-902-001-001 REV 107 PERFORMED EMERGENCY LIGHT BATTERY ASSY INSTALLATION TEST AND THE RESULT WAS GOOD. SN: 91862, 91861 & 91863</P>)

More about the Boeing 747-47UF