SDR P5CA2020112500387

Service difficulty report · Transducer · Boeing 7673JHF

Difficulty date: November 25, 2020
Submitted: November 30, 2020
Operation: Air carrier
Aircraft: N643GT
Make and model: Boeing 7673JHF
Aircraft serial: 37809
Aircraft time: 19,067 hours, 5,141 cycles
System (JASC): 3510 · Crew Oxygen System
Part: Transducer
Condition: Malfunctioned
Location: Voltage
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 CREW OXY PRESSURE INDICATION ABNORMAL. TRANSFERRED TO MDDR 138395, IAW MEL 35-11-02-01, CAT B. REMOVED AND REPLACED AVERAGING VOLTAGE UNIT & REGULATOR TRANSDUCER ON CREW OXY. THEN OPERATIONS CHECK OK, IAW AMM 35-11-04/401 & AMM 35-11-06/401. CLEARED MDDR NR 138395, REMOVED PLACARD, NOTIFIED TO MCC. T/I: DT 0548Z.

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