Service difficulty report · Bottle · Boeing 75733N

Difficulty date
February 24, 2025
Submitted
February 26, 2025
Operation
Air carrier
Aircraft
N57869
Make and model
Boeing 75733N
Aircraft serial
32593
Aircraft time
62,673 hours, 18,978 cycles
Part
Bottle
Part number
416N222032
Part serial
ALT216A5549
Condition
Faulted
Location
Aft Cargo
Part time
81,090 hours, 20,816 cycles
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

EMER ESCAPE SQUIB TEST 2 L DOES NOT ILLUMINATE REF FIM 25-65 FAULT TREE 803REF FIM 25-65 FAULT TREE 803 BLOCK 13 REMOVED CONNECTOR D5530 FROM PRESSURE SWITCH S10463. REMIVED HEAVY CORROSION FROM SWITCH AND FOUND SWITCH FAULTY PER BLOCK 15. PROVIDED A GROUND AT PIN C OF CONNECTOR AND TEST LIGHT ILLUMINATES VERIFYING THE WIRING STILL OK. REQUIRES BOTTLE REPLACEMENT. P/N 416N2220-32. PART NIS HNL. SQUIB TEST 1 OPERATES NORMALLY. CONFIRMED THE PRESSURE INDICATION ON THE ASSOCIATED PRESSURE GAUGE SHOWS THE BOTTLE IS CHARGED. INSTALLED INOP STICKER AND OPS PLACARD. REQUEST MEL OK TO DEFER EMERGENCY SQUIB TEST 2 LEFT PER MEL C/W MEL BOTTLE SIDE OF CONNECTOR D5530 IS SPINNING IN HOUSING. AFT CARGO FWD PANELS TO VERIFY CONNECTOR ON BOTTLE PRESSURE SWITCH IS DAMAGED. CORRECT POSITION FOR BOTTLE INSTALLATION IS LEFT OVERWING POSITION. CORRECT POSITION FOR BOTTLE INSTALLATION IS LEFT OVERWING POSITION.. VERIFIED CORRECT POS IS LEFT OVERWING. PREVIOUS TO FOUND BENT PINS ON D5530 RECEPTACLE OF S10463 L SLIDE INFLATION BOTTLE PRESS SW. STRAIGHTENED OUT PINS AND PERFORMED OPS CHECK OF ELECTRICAL SYSTEM SQUIB AND PRESSURE SWITCH IAW AMM 25-65-00. OPS CHECK GOOD. MEL CLEARED AND PLACARD REMOVED.

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