# SDR ABXA20260612255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2026
- Submitted: June 15, 2026
- Operation: Air carrier
- Aircraft: [N1427A](https://openairdocs.org/aircraft/N1427A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 28098
- Aircraft time: 94,094 hours, 21,906 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Iru
- Condition: Faulted
- Location: Zone 100
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260612255

## Discrepancy

AFTER PUSH BACK IN KSCK RIGHT ADI WAS COLLAPSED AND AFTER TOTAL RESET ON DE-ENERGIZING THE PLANE STILL PERSISTED THE PROBLEM AC RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C MTX DEFERRED R IRU IAW ABX MEL 34-21-1-1-2B MX ACTIONS COMPLIED WITH, PLACARD INSTALLED MBCB 06-22-2026 MUST BE REINSPECTED EACH FLIGHT DAY. A/C DOWNGRADED TO CAT 3A. AND RETURNED A/C TO SERVICE.

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