# SDR CALA2026052716558

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N76515](https://openairdocs.org/aircraft/N76515), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31623
- Aircraft time: 55,660 hours, 20,311 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 141A38188
- Condition: Damaged
- Location: Zone 200
- 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/CALA2026052716558

## Discrepancy

DURING PHASE TWO INSPECTION FOUND LIGHTNING STRIKE AT CROWN APPROXIMATELY STATION 350BETWEEN S 2R-3RFOUND TWO(2EACH)LIGHTINGAT STRIKE STA 360 LEFT BELOW FLOORBEAM. FASTENER/DAMAGE REMOVED REF SRM 53-00-01-2R.   INSPECTION-REJECT,"PIT" WITHIN COUNTERSINK CLEANED COUNTERSINK READY FOR NDT REF SRM 53-00-01-2R-41. INSPECTION-ACPD HFEC B737 NDT PART 6 ,51-00-00 NO CRACKS NOTED, OK TO INSTALL FASTENER. FUSE SKIN STILL DEEPLY PITTED AROUND THE RIVET HOLE,  OVERSIZED HOLE TO 1/4 INCH, NO GOOD, FUSELAGE SKIN STILL PITTED AROUND THE RIVET HOLE, SEE ATTACHED PHOTO. ESTIMATED DIAMETER TO CLEAR DAMAGE IS 11/32" (.34375) CONTINUED, REF SRM 53-00-01-2R-41. CONTINUED, REF SRM 53-00-01-2R-41. OPENED HOLE TO .312 REF 53-00-01-2R-41. REMOVED EXISTING FASTENERS FOR ACCESS REF SRM 51-40-02 REF AVO17433 COMPLETED A PROGRESSIVE SPOT-FACE ON THE SKIN TO REMOVE DAMAGE, FINAL HOLE SIZE IS .375. REQUIRES NDT INSPECTION. ACP NDT INSP REF AVO17433, ITEMS 5, 6, 7 AND 8. NO CRACKS INDICATIONS NOTED AT ALL REMOVED FASTENERS LOCATIONS AND BLENDING OF SKIN WAS MINIMAL, MATERIAL LOST WITHIN LIMITS.

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