24770-006AWL Aerospace Welding Forward Riser PA-24-260

24770-06 PIPER PA 24-260 B COMANCHE LEFT AND RIGHT HAND FRONT RISER

This Left and Right Hand Front Riser is meticulously inspected, overhauled or repaired by a world class team of welders and fabricators, using aerospace grade 321 stainless steel, which provides reliable service and resist corrosion in high temperature exhaust system conditions.

AIRCRAFT MAKE / MODEL: PIPER

PARTS CATEGORY: LEFT AND RIGHT HAND FRONT RISER

MATERIALS: 321 STAINLESS STEEL

PART CONDITION: OVERHAULED OR REPAIRED

AWI new, overhauled and repaired parts meet the FAA airworthiness requirements.

CHECK TAILPIPE FOR PITTING AND MATERIAL THINNING

AIRWORTHINESS DIRECTIVE (AD) AD 68-05-01 FOR EXHAUST SYSTEMS WITH LESS THAN 950 HR. TIME IN SERVICE, 100 HOUR REPETITIVE INSPECTION OF ENTIRE EXHAUST SYSTEM AND INTERNAL INSPECTION OF MUFFLER.

FOR SYSTEMS WITH 950 HR OR MORE TIME IN SERVICE, THE INSPECTION REQUIREMENT IS EVERY 50 HRS.  PER FAA, AWI'S OVERHAULED PARTS QUALIFY AS ZERO TIME PARTS.

CARBURATED AIRCRAFT USE 2 LEFT HAND MUFFLERS (2 HEAT EXCHANGERS). FUEL INJECTED AIRCRAFT ORIGINALLY USED RIGHT HAND (SMOOTH) MUFFLER AND A LEFT HAND (HEAT EXCHANGER) MUFFLER, BUT NOT ALWAYS. AD 91-21-09 & PIPER SERVICE BULLETIN 861 FOR INDUCTION SYSTEM ICING,  THE FIX WAS TO USE 2 HEAT EXCHANGER MUFFLERS AND HAVE HEATED AIR ENTER THE ALTERNATE AIR INDUCTION SYSTEM.