# SDR DALA2023040602689

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2023
- Submitted: April 6, 2023
- Operation: Air carrier
- Aircraft: [N501DN](https://openairdocs.org/aircraft/N501DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0115
- Aircraft time: 22,982 hours, 2,361 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023040602689

## Discrepancy

AIRCRAFT 3501, AD/ EM-EO TASK- LH HORIZONTAL STABILIZER LLF UPPER BUSHING MIGRATION WAS NOT FOUND TO BE UNIFORM (AA 5510-01108). CORRECTIVE ACTION: ACCOMPLISHED REPAIR PER DELTA AA 5510-01108-02A (L/H) [R55V80083] WITH THE FOLLOWING DEVIATIONS: / A) FABRICATED BUSHING R55V8007820400 FROM 17-4PH PER AMS5643, HEAT TREATED TO H1025 PER AMS 2759/3, IN LIEU OF ABS5442. / B) ACCOMPLISHED FPI ON BUSHING PER NTM TASK A350-A-51-98-10-00001-351A-A IN LIEU OF AITM6-1001. / C) ACCOMPLISHED PASSIVATION ON FABRICATED BUSHING PER AMS 2700 TYPE II METHOD I IN LIEU OF AIPS 02-05-005. / D) ACCOMPLISHED CADMIUM PLATING ON BUSHING PER AMS-QQ-416 IN LIEU OF ZNNI PLATING PER AIPS 02-04-006. SUPPLEMENTAL: PRIOR TO AIRCRAFT REACHING 38,200 TOTAL FLIGHT CYCLES, CONTACT AIRBUS TO REQUEST FOR THE INSPECTION INTERVAL AND INSPECTION METHODOLOGY AS PER ER/A 607336-14AD SECTION II REV ORIGINAL. ASSOCIATED AA 5510-01108 ADDED FOR AC 3501 ASSOCIATED ER/A 00-607336 ADDED FOR AC 3501 (LP 2706438)

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