# SDR CALA2026011913039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2026
- Submitted: January 19, 2026
- Operation: Air carrier
- Aircraft: [N37368](https://openairdocs.org/aircraft/N37368), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 68809
- Aircraft time: 2,836 hours, 937 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 22064002
- Part serial: 19850
- Condition: Faulted
- Location: Right
- Part time: 2,820 hours, 932 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026011913039

## Discrepancy

BURNING SMELL AFTER APU BLEED USED IN FLIGHT DECK RT PACK LIGHT ON APPLY MEL 2151,  RT PACK LIGHT ON MEL 2151T ONE PACK INOPERATIVE - APU OPERATES NORMALLY. BITE TESTS PASSED NO FAULTS BUT LIGHTS ILLUMINATES AFTER 1 MIN OF RUNNING THE RT PACK. ESC PACK OFF WITH AFFECTED SWITCH OFF.  COMPLIED WITH MAINT ACTION. STICKER APPLIED *DM* SEE M/L FOR ACM, PACKINGS, GASKET & FLEX DUCT, IF NEEDED. FOUND RT PACK ACM SEIZED.  R & R RT PACK ACM. PERFORMED RT PACK AIR CONDITIONING, SYSTEM TEST, AIR CONDITIONING IBIT - PASS. SUPPLIED CONDITIONED AIR WITH THE RIGHT COOLING PACK - NO SMOKE NOR FUMES NOTED. REF AMM 21-51-04.

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