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

Page: 694 / 1956

PAGE 20
Feb 28/07 30-10-00
3J6
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(2) Tube Area Damage: Use Kit No. 74-451-AA (see application instructions, under Scuff Damage,
above) to repair cuts,tears or ruptures that leak air but do not cut inflatable tube fabric, and do
not exceed 4" X 9". Use Kit No. 74-451-AE to repair pinholes that leak air, but do not exceed
1/16 inch in diameter, as follows:
CAUTION: CUTS, TEARS, OR RUPTURES THAT CUT THE INFLATABLE TUBE FABRIC
REQUIRE DEICER REPLACEMENT.
CAUTION: PATCHES HAVE A ONE-WAY STRETCH ACROSS WIDTH OF PATCH SO
PATCH CAN STRETCH WHEN DEICER INFLATES. PATCH MUST BE
INSTALLED WITH LENGTH PARALLEL TO DEICER TUBES. FAILURE TO DO
SO MAY RESULT IN PATCH LIFTING WHEN DEICER INFLATES.
CAUTION: MIXED REPAIR MATERIAL MUST BE USED WITHIN TWO (2) HOURS.
CAUTION: APPLICATION OF 74-451-AE KIT IS NOT RECOMMENDED BELOW 50°F
(10°C), AS REPAIR MATERIAL MAY NOT DRY.
(a) Clean deicer surface to be repaired with detergent and hot water using lint-free cloth, to
remove dirt, grease and cosmetic coatings. Repeat until oil and silicone contamination is
removed.
(b) Isolate repair area with buffing template. Buff isolated area with Scotch Brite TM or
equivalent.
(c) Wipe isolated area with lint-free cloth dampened with alcohol or equivalent cleaning
solvent and allow to dry.
(d) Secure application template with hole centered over pinhole.
(e) Open foil overpack of 74-451-209 cement. Clip corner of Appli-pak pouch and squeeze
cement into mixing cup. Make sure that all material from pouch is squeezed into mixing
cup to assure proper mix ratio with accelerator.
CAUTION: RECAP ACCELERATOR TIGHTLY AFTER USE AS ACCELERATOR WILL
HARDEN IF NOT SEALED COMPLETELY.
(f) Add seven (7) drops of P/N 74-451-201 accelerator. Mix thoroughly with wooden stir stick
for one minute, making sure material on sides of cup is thoroughly mixed.
CAUTION: REMOVE APPLICATION TEMPLATE AS SOON AS REPAIR MATERIAL IS
APPLIED AND LEVELED TO ASSURE SMOOTH APPEARANCE.
(g) Apply repair material into hole in application template with wooden stir stick. Push repair
material firmly into pinhole. Level repair material with application tool.
NOTE: If repair material is spilled on undamaged deicer surface, remove immediately
with Toluene.
(h) Allow two (2) hours dry time prior to flying the aircraft or inflating deicer.
(3) Loose Surface Ply in Dead Area (i.e. - non-inflatable area): Use P/N 74-451-AA patch kit to
repair cuts, tears or ruptures that do not exceed 4" X 9" per Scuff (Surface) Damage, above.
Surface ply peeling less than 4" X 9" can be repaired by trimming away loose surface material,
and applying the 74-451-AA patch repair as follows:
(a) Peel and trim the loose surface ply to the point where the adhesion of surface ply to the
deicer is good.
(b) Proceed with patch application per 74-451-AA patch kit application instructions, under
Scuff Damage, above.