SDR P5CA2017061200180

Service difficulty report · Power Supply · Boeing 74746NF

Difficulty date: June 10, 2017
Submitted: June 13, 2017
Operation: Air carrier
Aircraft: N450PA
Make and model: Boeing 74746NF
Aircraft serial: 30808
Aircraft time: 69,972 hours, 11,791 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Part number: BPS73
Part serial: 50094
Condition: Malfunctioned
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 THE EMERGENCY LIGHT POWER SUPPLY BATTERY ASSY FUNCTION BAD IAW AMM 33-51-04-002-009-001 & 33-51-04-402-012-00, REV 89. REPLACED THE POWER SUPPLY AND CHECKED NORMAL IAW AMM 33-51-04-402-012-001, REV 89, STEP D. PERFORMED EMERGENCY POWER SUPPLY TEST AND THE RESULT WAS SATISFACTORY.

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