Service difficulty report · Windshield · Agusta AW139

Difficulty date
April 23, 2026
Submitted
April 23, 2026
Operation
General aviation
Aircraft
N9YTKD
Make and model
Agusta AW139
Aircraft serial
41398
Aircraft time
8,570 hours, 18,940 cycles
Engine
Pwc PT6C67C
Part
Windshield
Part number
3G5610V00251
Part serial
20261H6725
Condition
Cracked
Location
Zone 200
Part time
8,570 hours, 18,940 cycles
Stage of operation
HO
How discovered
V
Nature of condition
O
Precautionary procedure
C

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

What was found

ON 22 APRIL 2026 AT 1:56PM, THE CREW REPORTED WHEN TRANSITIONING INTO HOVER A "POP" SOUND WAS HEARD. SUBSEQUENTLY MULTIPLE VERTICAL CRACKS WERE OBSERVED ON THE R/H HEATED GLASS WINDSHIELD COMMENCING FROM THE BOTTOM LEFT CORNER OF THE WINDSHIELD TO THE TOP. NO EVIDENCE WAS OBSERVED OF ANY FOREIGN OBJECT IMPACTING THE WINDSHIELD. UPON NOTICE OF THIS OCCURRENCE, CREW INFORMED FLIGHT OPERATIONS CENTRE OF INCIDENT. RETURN TO BASE, WITH NO NOTED FURTHER DISCREPANCIES. TIME IN SERVICE OF THE R/H HEATED GLASS WINDSHIELD COULD NOT BE DETERMINED AT THIS TIME. (AIRCRAFT TIME AND CYCLES USED, UNTIL CONFIRMATION OF INSTALLATION) OEM INFORMED OF THE OCCURRENCE AND A TECHNICAL QUERY RAISED. REFERENCE PSE/TQ/2026/239540. REPLACEMENT RH HEATED WINDSHIELD ORDERED. R/H HEATED GLASS WINDSHIELD CRACKED IN HOVER, SAME TO BE REPLACED. REFERENCE LOGBOOK ENTRY (LBE) 087/26. OPERATIONAL TEST CARRIED OUT SATISFACTORY. REFERENCE LOGBOOK ENTRY (LBE) 087/26.

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