Service difficulty report · Squib · Lear 45LEAR

Difficulty date
June 26, 2007
Submitted
August 3, 2007
Operation
General aviation
Make and model
Lear 45LEAR
Aircraft time
1,874 hours
Engine
Garrtt TFE7312
Part
Squib
Part number
3090385659
Condition
Inoperative
Location
Fire Bottle
Part time
2,172 hours
Component
Fire Bottle · Pacificscien
Component part number
331000211
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

(CAN) WHILE PERFORMING ANOTHER MAINTENANCE TASK IT WAS DISCOVERED THAT THE LOWER (FWD) FIRE BOTTLE SQUIBS WERE NOT INSTALLED IN THE CORRECT POSITION. BOTH FIRE BOTTLES CONTAIN A SQUIB FOR THE LT AND RT ENGINES, THE LOWER NR 1 BOTTLE IS FOR THE FIRST SHOT AND THE UPPER NR 2 BOTTLE IS FOR THE SECOND SHOT. THE LT AND RT SQUIBS ON EACH BOTTLE HAVE A DIFFERENT PN WITH A DIFFERENT CONNECTOR PLUG RECEPTACLE IN ORDER NOT TO ACCIDENTALLY SWAP LT AND RT ENGINES EXTINGUISHING CAPABILITIES. HOWEVER, SINCE THE SQUIBS WERE INSTALLED INCORRECTLY THE FIRST EXTINGUISHING SHOT WOULD HAVE BEEN DIRECTED TO THE WRONG ENGINE. UPON INVESTIGATION IT WAS DISCOVERED THAT THE SQUIBS MAY HAVE BEEN INSTALLED INCORRECTLY AT THE LAST 10-