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SDR ASAA2025090260531

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Service difficulty report · Battery Pack · Boeing 737890

FAA SDR system

Difficulty date
September 2, 2025
Submitted
September 3, 2025
Operation
Air carrier
Aircraft
N597AS
Make and model
Boeing 737890
Aircraft serial
35689
Aircraft time
61,857 hours, 18,762 cycles
System (JASC)
3350 · Emergency Lighting
Part
Battery Pack
Part number
D71702001
Condition
Inoperative
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

WHILE WORKING TC 78233001 THE FOLLOWING DEFECTS NOTED: 1) RH FWD OWE GROUND ILLUMINATION LIGHT INOP. 2) L2 OVERDOOR & ASSOCIATED LIGHTS INOP. 3) 21-24 DEF EMERGENCY AISLE LIGHTS INOP. 4) LH OWE GROUND ILLUMINATION & ESCAPE LT INOP. 5) 18-22 ABC EMERGENCY AISLE LIGHTS INOP. GROUNDED - YES. PER TC 78233001 & AMM 33-51-06 EMERGENCY EXIT LIGHT BATTERY PACK REMOVED & REPLACED FOR M1676, M1694, M1670, M1671 & M1673. RH FWD OWE GROUND ILLUMINATION LIGHT RELAMPED REF AMM 33-51-04. OPS CHECKS GOOD.