# SDR CALA2026101320331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2026
- Submitted: October 13, 2026
- Operation: Air carrier
- Aircraft: [N652UA](https://openairdocs.org/aircraft/N652UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25390
- Aircraft time: 134,173 hours, 20,328 cycles
- Engine: Pwa PW4060
- System (JASC): [3430 · Landing and Taxi Aids](https://openairdocs.org/jasc/3430)
- Part: Receiver
- Part number: 8221821001
- Part serial: 18RYCL
- Condition: Faulty
- Location: Right
- Part time: 834,167 hours, 720,326 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026101320331

## Discrepancy

NO LAND 3 ON ASA PERFORMED MCDP TEST 30, FOUND NO INFC FCC ILS BUS R, AND ILS R FAIL. REQUESTING MEL 3431J, DDP FOLLOWED. DISPATCH DESK: 11   NAME: BNC DATE: 05-OCT-26- 3431J APPROVED DEFERING PER MEL 3431J, DDP FOLLOWED. *DM* AFTER DOING BITE 22-02 TASK 801, PLEASE UPDATE LOG WITH FINDINGS SO PARTS CAN BE ORDERED. THANKS RIGHT MMR LRU FAILED. LEFT AND RIGHT MMR SWAPPED AND FAULT FOLLOWED. MMR LEFT AND RIGHT REINSTALLED TO ORIGINAL POSITION. NEEDS TO REPLACE RIGHT MMR PER  AMM34-31-01/401. FIM TASK 22-02-00-815-801. MMR LRU PART REPLACE AS SHIPSETS PER IPC 34-31-01-50A AND EC 3431-0144C. LOG STILL ON MEL STATUS. REPLACED RIGHT MMR BOX REF AMM 34-31-01

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