SDR CALA2024081300410

Service difficulty report · Adiru · Boeing 7378

Difficulty date: August 11, 2024
Submitted: August 13, 2024
Operation: Air carrier
Aircraft: N17312
Make and model: Boeing 7378
Aircraft serial: 64609
Aircraft time: 3,989 hours, 1,412 cycles
System (JASC): 3421 · Attitude Gyro and Indicating System
Part: Adiru
Part number: HG2050BC04
Part serial: 56121048
Condition: Faulty
Location: Cockpit
Part time: 3,970 hours, 1,407 cycles
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IRS-R FAULT LIGHT IS ON CHECKED FAULT MASSAGE: ADIRU-R INTERNAL FAULT. ADDED PARTS USED. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1522004 SN OFF 1048 UNIT, ADIRU, AI OFF 42-3421-9-0001 1048 ON 42-3421-9-0001 5385 REMOVED & REPLACED RT ADIRU (M1752) REF AMM 34-21-01, PERFORMED OPS TEST REF AMM 34-21-00-710-801 TESTS OK.

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