SDR UIEA2021040200791

Service difficulty report · Battery · Boeing 74747UF

Difficulty date: April 1, 2021
Submitted: April 2, 2021
Operation: Air carrier
Aircraft: N492MC
Make and model: Boeing 74747UF
Aircraft serial: 29253
Aircraft time: 93,536 hours, 16,163 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: BP573
Part serial: 32450
Condition: No Test
Location: Emergency Lights
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 EMER LIGHT NOT STAYING MORE THAN 5 MIN. IAW AMM 33-51-04-902-001-001 REV 100 REPLACED BATTERIES AT M5168, M5169, AND M5170. IAW AMM 33-51-04-902-001--001 REV 100 PERORMED TEST OF NEW BATTERIES AND THE RESULT WAS SATISFACTORY.(OFF PARTS: PN 2013-1A, SN63513; PN 2013-1A, SN 56723).

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