# SDR CALA2026102320550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2026
- Submitted: October 23, 2026
- Operation: Air carrier
- Aircraft: [N14560](https://openairdocs.org/aircraft/N14560), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 12842
- Aircraft time: 685 hours, 250 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: R55122485
- Condition: Damaged
- Location: Zone 300
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026102320550

## Discrepancy

DAMAGE TO OB HORIZONTAL LOWER SKIN LOCATED 4.5 IN OB RIB 12, 5.25 IN FWD OF AFT EDGE LOWER SKIN.  DISBOND WITH HOLE MEASURES 2IN  X 1.5IN.  AFT LOWER SKIN AFT EDGE DAMAGE LOCATED 3.5IN OB RIB 12 WITH 1IN CUT, AND 3.5 DISBOND SPANWISE TO SKIN.  ACP NDT REF AVO018157 REV. B PAR. 9(C). REF.  NTM 51-10-06.  ACP RII FOR WORK ACP WITH AVO18327 STEPS 1 THROUGH 4 AND PAR C STEPS 1 THROUGH 6 FOR COMPLETION. REF. AVO18327 REV.A - ACCOMPLISHED STEP C.8) REF. AVO18327 REV. B STEP C. ACCOMPLISHED STEPS 10, 12-16. REF. AVO18327 REV. B  PAR. REPAIR MATERIALS - VERIFIED ALL REPAIR PARTS WITHIN KITS SR5511-90A16100, SR5511-90A16900 AND SR5511-90H16100. ACP RII FOR VERIFICATION OF PAR C STEP 8, 10, 12 THROUGH 16 IN AVO18327 REV B. ALSO ACP RII FOR VERIFICATION OF PARTS AS CALLED OUT IN AVO 18327 IN PAR. FOR REPAIR MATERIALS. REF. AVO18327 REV. B  PAR. C STEPS 7,11 AND 17 - READY TO PERFORM ULTRASONIC INSP. NTM 51-10-06 PROCEDURE A. NEED INSP. TO ACCOMPLISH PREVIOUS ENTRY. ACP RII REF AVO18327 REV B PAR C STEPS 7, 11, AND 17. ACP NTM 51-10-06 PROC A FOR AREAS CALLED OUT WITH NO FURTHER DAMAGE NOTED. REF. AVO18327 REV.VERIFIED ALL STEPS AND INSPECTIONS COMPLETED FOR ECRA 5511-01117. ALL ITEMS COMPLIED WITH. MAJOR REPAIR .

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