SDR 95ZZZX1879

Service difficulty report · Tunnel · Cessna 170A

Difficulty date: March 17, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N9210A
Make and model: Cessna 170A
Aircraft serial: 18971
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Tunnel
Condition: Corroded
Location: Cabin
Part time: 3,200 hours
Stage of operation: IN
Nature of condition: O
Precautionary procedure: K

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

What was found

CABIN HEAT DUCT TUBING LEADING FROM THE FIREWALL TO THE REAR SEAT HEAT IS CAUSING SEVERE CORROSION IN THE CABIN TUNNEL INTERIOR. THIS TUNNEL SUPPORTS THE YOKE ASSEMBLY, TRIM WHEEL, AND FLAP LEVER. RECOMMEND REPLACING ALL INTERIOR DUCT TUBING WITH MODERN SILICONE CAT OR SCAT, INSPECT FOR CORROSION.

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