Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
May 15, 2022
Submitted
May 18, 2022
Operation
Air carrier
Aircraft
N8687A
Make and model
Boeing 7378H4
Aircraft serial
33937
Aircraft time
20,170 hours, 9,421 cycles
Part
Battery Pack
Part number
M2335
Condition
Inoperative
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

9 EA EMERGENCY LIGHTS ARE INOP. / [01] AFTER FURTHER INVESTIGATION; FOUND THAT INOP LIGHTS ARE ASSOCIATED WITH EMERGENCY EXIT LIGHTS BATTERY PACKS M2335 AND M1672.REMOVED AND REPLACED EMERGENCY EXIT LIGHT POWER SUPPLIES M2335 AND M1672. PERFORMED GOOD INSTALLATION TEST OF NEWLY INSTALLED POWER SUPPLIES. ALL WORK PERFORMED AS PER AMM. 33-51-06-960-806 STEP. 5.E.PERFORMED GOOD OP CHECK OF EMERGENCY EXIT LIGHTS AS PER AMM 33-51-06-960-806;

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