Service difficulty report · Window · Dhav DHC8301

Difficulty date
December 7, 2010
Submitted
March 15, 2011
Operation
Air carrier
Make and model
Dhav DHC8301
Aircraft time
43,938 hours
Part
Window
Part number
NP15790111
Condition
Delaminated
Location
Cockpit
Part time
28,300 hours
Stage of operation
TX
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

(CAN) REF: DEFECT-955009. 561475-THE CAPTAINS FRONT WINDOW HAS CRACKS ALL THE WAY AROUND THE PERIMETER. THE A/C PRESSURIZES NORMALLY. (RESOLVED ON W/O: 265017 TASKCARD: NR-00002) VISUAL INSPECTION COMPLETED AND FOUND WINDOW TO HAVE CRACKLING DELAMINATION DAMAGE ALL AROUND THE WINDOW . DAMAGE FOUND TO BE WITHIN LIMITS SET OUT IN PPG CMM. FURTHER INSPECTION FOUND A DARK COLORED SPOT NEAR THE BOTTOM ELECTRICAL BUS BAR AND A OVERHEATED POWER SUPPLY TERMINAL ON THE TERMINAL BLOCK. NEW WINDSHIELD INSTALLED AS PER 56-10-11,PG201.OPERATIONAL TEST OF WINDSHIELD HEAT COMPLETED AND FOUND TO WORK NORMALLY.MARK721042 WINDOW P/N-NP157901-11 S/N-96240H5729. TSN-28300, CSN- 31799 (TC# 20101213011)