# SDR DHL2001742010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2001
- Submitted: August 3, 2001
- Operation: Air carrier
- Aircraft: N742DH
- Make and model: Boeing 727225
- Aircraft serial: 21290
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Isolator
- Condition: Worn
- Location: Fire Detection
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2001742010

## Discrepancy

FIRE PROTECTION SYSTEM P6-3 NR 3 DETECTOR CIRCUIT BRD LIGHT IS ILLUMINATED. FOUND 3EA CLAMP ISOLATORS WORN THROUGH, ALLOWING LOOP TO TOUCH METAL  CLAMPS, FOUND 1EA INCORRECT CLAMP WHICH IS USED ON A DUAL LOOP SYS.   REMOVED AND REPLACED 3EA CLAMP ISOLATORS IAW MM 26-11-12.

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