Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
November 8, 2024
Submitted
December 13, 2024
Operation
Air carrier
Aircraft
N206WN
Make and model
Boeing 7377H4
Aircraft serial
34011
Aircraft time
61,640 hours, 36,656 cycles
Part
Battery Pack
Condition
Failed
Location
Zn 200 Fus Top
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

EMERGENCY EXIT LIGHT LOCATED BTW STA 344 AND STA 360 STR 14L AND STR 15L EXTERIOR FUSELAGE FAILS TEST IAW STEP 60 PER SWA TASK TTG8Q00WCEC4. 2024-691714<[01] CLOSED THE ACCESS PANEL IN THE FWD LOWERED CEILING PANEL IAW B737-700 AMM:33-51-06-960-805 STEP 4.F.(1) AND (4);[02] CORRECTED STEP 1 ENTER IN ERROR;[03] REPLACED EMERGENCY POWER SUPPLY BATTERY PACK AT STA 322 M1675 UPPER FUSELAGE I.A.W. B737-700 33-51-06-960-805 THEN PERFORMED EMERGENCY LIGHT TEST AND TEST IS OK. SEE INDIVIDUAL SIGN OFF STEP BELOW;[04] REPLACED EMERGENCY POWER SUPPLY BATTERY PACK AT STA 322 M1675 UPPER FUSELAGE I.A.W. B737-700 33-51-06-960-805 THEN PERFORMED EMERGENCY LIGHT TEST AND TEST IS OK. SEE INDIVIDUAL SIGN OFF STEP BELOW

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