SDR P5CA2017011200013

Service difficulty report · Rectifier · Boeing 7673JHF

Difficulty date: January 12, 2017
Submitted: January 13, 2017
Operation: Air carrier
Aircraft: N643GT
Make and model: Boeing 7673JHF
Aircraft serial: 37809
Aircraft time: 9,632 hours, 2,609 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Rectifier
Part number: 28VS200T4B2
Part serial: 12076850
Condition: Failed
Location: Apu
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

FOUND APU TRU FUNCTION FAILED. REPLACED APU START TRANSFORMER RECTIFIER UNIT IAW AMM 24-32-04-004-012, 24-32-04-404-003 REV.120. & PERFORMED TEST OF THE APU START TRU INSTALLATION, RESULT WAS SATISFACTORY IAW AMM 24-32-04-404-003 REV.120 .

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