Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1238 / 1956

PAGE 6
Feb 28/07
6J6
56-00-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
C. Acrylic Window (Cockpit) Inspection
CAUTION: PRESSURIZED FLIGHT PROHIBITED WITH CRACKED OR CRAZED WINDOW.
(1) The cockpit windows are formed from 0.250 inch thick acrylic.
(2) Semi-Critical Area Inspection. The areas of cockpit acrylic windows used for general flight
vision.
(a) Cracks.
Inspect for cracks per Crack Inspection - Acrylic Windows and Windshields, below.
(b) Crazing.
1 Crazing in the windows is critical.
2 Determine depth of craze using a calibrated depth gauge or scale (see Figure 1).
3 A craze 0.050 inch (1.270 mm) deep is cause for immediate replacement. A craze
0.025 inch (0.635 mm) deep is cause for replacement at the earliest opportunity.
4 Crazing in any portion of a window requires replacement.
(c) Haze or foggy appearance is not acceptable if the amount of haze/fog causes an
obstruction of vision in the area used for operation of the aircraft.
Determining Depth of Craze
Figure 1