Service difficulty report · Wire · Boeing 737200

Difficulty date
December 16, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Boeing 737200
Aircraft time
72,137 hours
Engine
Pwa JT8D209A
Part
Wire
Condition
Shorted
Location
Cargo Bay
Stage of operation
NR
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

(CAN) THE POSITIVE WIRE FROM THE BATTERY PACK IN THE AFT CARGO PIT SHORTED AGAINST THE BATTERY MOUNT BRACKET ON THE LID OF THE BATTERY HOLDER ASSEMBLY. THE BATTERY SHORTED ONCE THE LID WAS MOUNTED TO THE BOX, THE BATTERY OVERHEATED & STARTED TO EMIT SMOKE. THE LID & BATTERY ASSEMBLY WAS REMOVED FROM THE ACFT WITH NO DAMAGE TO ACFT OR STRUCTURE, THE BATTERY PACK WAS REPLACED. UPON FURTHER INVESTIGATION BY THE SMS DEPARTMENT IT WAS FOUND THAT THE NEWLY INSTALLED BATTERY PACK POSITIVE WIRE WAS PRESSING AGAINST THE BATTERY MOUNT BRACKET EXPOSING IT TO A RISK OF FUTURE DAMAGE THROUGH CHAFING & THEN THE SUBSEQUENT SHORTING OF THE BATTERY WITH THE POTENTIAL FOR FIRE. THE BATTERY

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