# SDR CA021105004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2002
- Submitted: December 2, 2002
- Operation: Air carrier
- Make and model: Frchld SA227CC
- Engine: Garrtt TPE33111U
- Propeller: Rotol R321482F8
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Warning Light
- Condition: False Activation
- Location: Cargo Door
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA021105004

## Discrepancy

(CAN) AFTER TAKE-OFF AND AS THE AIRCRAFT BEGAN TO PRESSURIZE THE CARGO DOOR WARNING LIGHT ILLUMINATED. THECREW REQUESTED A RETURN TO BASE AND LANDED UNEVENTFULLY. MAINTENANCE INSPECTION OF THE AIRCRAFT DET ERMINED THAT A FALSE WARNING INDICATION OF THE CARGO DOOR WARNING SYSTEM WAS CAUSED BY THE PRESENCE OF MOISTURE IN THE AREA OF THE CARGO DOOR WARNING SWITCHESAND CLICK-CLACK LATCHES. THE SWITCHES AND LATCHES WERE DRIED, CLEANED AND LUBRICATED AND THE DOOR CLOSURE AND INDICATING SYSTEM FUNCTION CHECKED SERVICEABLE.

---
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.