# SDR CALA2026022414046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2026
- Submitted: February 24, 2026
- Operation: Air carrier
- Aircraft: [N67134](https://openairdocs.org/aircraft/N67134), registered now
- Make and model: Boeing 757224
- Aircraft serial: 29283
- Aircraft time: 97,920 hours, 21,185 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Idg
- Part number: 727792N
- Part serial: A1501
- Condition: Faulted
- Location: Nr 2
- Part time: 75,406 hours, 18,244 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: H
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026022414046

## Discrepancy

RT AC BUSS OFF, FIGHT CREW REPORTED BUSS DROPPED OFF,  CABIN WENT DARK AT TIME OF FAILURE AND DID WAS NOT PICKED UP. T/S IAW WDM 71-51-22-1 AND SSM 24-23-02 . CHECKED WIRING FROM RT ENG GCU D2070B TO RT ENG IDG D1396P. ALL WIRING CHECKED GOOD. CHECKED RT ENG IDG  CT CIRCUIT & FOUND AN OPEN ON PIN 13 TO 3.  WILL REQUIRE IDG REPLACEMENT. REMOVED & REPLACED NR 2 ENGINE IDG IAW 24-11-01. PLACED FULL A/C LOAD ONTO #2 IDG WHILE RUNNING WITH LOAD BEING APPROX 0.70 WITH NO DEFECT NOTED TO RIGHT A/C BUS OFF OR LOAD SHEDDING ISSUES. OPS AND LEAK CHECK GOOD. REF L/PS 8010638, 8010648, 8010671, 8001666 FOR ALL WORK RELATED TO WIRINGS AND CONNECTOR. NO BPCU FAULTS NOTED.  IDT ACP'D FOR INSTALLATION OF NR 2 IDG IAW REQUIREMENTS OF GMM 09-10-15.

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