SDR ABXA20250928242

Service difficulty report · Smoke Detector · Boeing 7673P6

Difficulty date: September 28, 2025
Submitted: September 29, 2025
Operation: Air carrier
Aircraft: N764CK
Make and model: Boeing 7673P6
Aircraft serial: 26234
Aircraft time: 88,958 hours, 27,797 cycles
System (JASC): 2611 · Smoke Detection
Part: Smoke Detector
Condition: No Test
Location: Zone 100
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING C-4 CHECK IN OSCALA, MI., MAINTENANCE FOUND AFT LOWER CARGO SMOKE DETECTOR ZONE FIALED LEAK CHECK. REMOVED AND REPLACED TUBE ASSY, TEE HOSE, AND SILICON HOSE IAW BOEING PROPRIETARY BAC5014 REV (L) 10JUNE2024 STEP 8.3.3. LEAK CHECK GOOD IAW IAI B767-300 SMM 26-14-00. TUBE, SMOKE SAMPLING SILICONE PN: 368-26-10-91273-211 SN: UNK TUBE ASSY, CARGO SMOKE DET HEATER PN: 371-26-00-C1347-101 SN: UNK.

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