# SDR DHL2002366008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2002
- Submitted: June 27, 2002
- Operation: Air carrier
- Aircraft: N366DH
- Make and model: Airbus A300 B4-203
- Registry model: [Airbus A300 B4-203](https://openairdocs.org/model/airbus-industrie-a300-b4-203) (OpenAirDocs)
- Aircraft serial: 249
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Relay
- Condition: Failed
- Location: Fire Detection
- Stage of operation: UK
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2002366008

## Discrepancy

THE ENG 1 LOOP LIGHT ILLUMINATED WITH A SINGLE SOUND CHIME (SSC) AND THE LOOP LT ON THE MWP.  AFTER 30 SEC THE LIGHT WENT OUT.  A NORMAL TEST OF THE SYSTEM YIELDED A SSC AND THE LOOPS LIGHT ON THE MWP, BUT THE ENGINE 1 LOOP LIGHT WOULD NOT ILLUMINATE.  LOOP-B WAS SELECTED AND A SUCCESSFUL TEST WAS PERFORMED.  REMOVED AND REPLACED A-LOOP TEST RELAY 31WD.  TESTED NR 1 AND NR 2 A-LOOPS AS PER MM 26-12-00.  BOTH CHECKED GOOD.

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