# SDR CALA2026052616544

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N47524](https://openairdocs.org/aircraft/N47524), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64501
- Aircraft time: 17,823 hours, 5,897 cycles
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Liner
- Condition: Damaged
- Location: Zone 400
- 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/CALA2026052616544

## Discrepancy

HOLE IN ENGINE 2 FAN CASINGFOUND LOCATION OF HOLE TO BE LOCATED IN RT SIDE APPROXIMATELY 3'O CLOCK POSITION WITH CARBON PLIES SHOWING THROUGH ON NO.2 ENGINE INSIDE THE ABRADABLE LINER INNER BARREL SKIN SECTION "B" LENGTH OF HOLE 0.50" DEPTH OF HOLE 0.22" REF AMM FAN CASE MODULE INSPECTION TASK 72-21-00-200-802-G00. STEP (1)-C. REF AMM 72-21-00-200-802-G00 IMPACT MARKS & CRATERS MISSING MATERIAL ON ABRADABLE LINER STEP 6-(I) 1-C. CARBON PLIES SHOWING THROUGH CONTINUE IN SERVICE LIMIT OF 50CYCLES OR 125HOURS IS PERMITTED. CARBON PLIES MUST REMAIN WITHIN CARBON PLIES CRITERIA UNDER VISUAL INSPECTION A DAILY INSPECTION OF THE CRATER MUST BE PERFORMED. FOR SCPETRE ENTRY ONLY, THIS TASK IS NOT INSPECTION ITEMS. QC845. DIP 72-DIP REJECTED REF AMM 72-21-00-200-802-G00 IMPACT MARKS & CRATERS MISSING MATERIAL ON ABRADABLE LINER STEP 6-(1)-C. CARBON PLIES CRITERIA UNDER VISUAL INSPECTION A DAILY INSPECTION OF THE CRATER MUST BE PERFORMED.

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