# SDR KCSA202504150314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2025
- Submitted: April 15, 2025
- Operation: Air carrier
- Aircraft: [N705CK](https://openairdocs.org/aircraft/N705CK), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 26413
- Aircraft time: 86,994 hours, 14,976 cycles
- System (JASC): [2170 · Humidity Control System](https://openairdocs.org/jasc/2170)
- Part: Coalescer Bag
- Condition: Unserviceable
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA202504150314

## Discrepancy

SMOKE CREW REST. TRANSFERRED TO DMI 100191197 IAW B747 MEL 26-14-2-1-2 CAT C DUE 4-23-25 PLACARDS INSTALLED (M) PROCEDURES COMPLIED WITH. REMOVED AND REPLACED PACK 3 WATER SEPERATOR
COALESCER BAG IAW B747-400 AMM 21-51-05. OPERATIONS AND LEAK CHECK GOOD. NO DEFECTS NOTED, THIS CLEARS DMI 100191197.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
