# SDR ABXA20241207246

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2024
- Submitted: December 9, 2024
- Operation: Air carrier
- Aircraft: [N1361A](https://openairdocs.org/aircraft/N1361A), registered now
- Make and model: Boeing 767-31B
- Registry model: [Boeing 767-31B](https://openairdocs.org/model/boeing-767-31b) (OpenAirDocs)
- Aircraft serial: 26265
- Aircraft time: 101,314 hours, 23,247 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Iru
- Part number: CG1093AD01
- Part serial: 736
- Condition: Failed
- Location: Zone 200
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20241207246

## Discrepancy

AFTER PUSHBACK R IRS ALIGN EICAS AND DISCRETE LIGHT ILLUMINATED. PERFORMED QUICK ALIGN AND STATUS DID NOT CHANGE. AIIRCRAFT RETURNED TO GATE. MAINTENANCE GROUNDED AIRCRAFT. TRIED NEW CENTER IRU, NO HELP. WAPPED RIGHT & CENTER SYMBOL GENERATOR, NO HELP. ALL UNITS BACK TO ORIGINAL POSITIONS. REPLACED RIGHT IRS INST. SOURCE SELECT SWITCH, S12, PER B SWPM 20-84-15, REMOVED AND REPLACED RELAY K510 (ADIRU SELECT R) AND RELAY K137 ( IRS DC PWR DISCONNECT) NO FIX. REMOVED AND REPLACED IRMP IAW AMM 34-21-02 OPS CHECK GOOD. REMOVED AND REPLACED R IRU IAW B 767 AMM 34-21-01 OPS CHECK GOOD THIS CLEARED THE  DI , PLACARDS REMOVED NO REACTIVATION PROCEDURES APPLY A/C DOWNGRADED CAT I. AIRCRAFT RETURNED TO SERVICE

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