PIPER PA-23-250 C-F Aztec with Lycoming IO-540 Engine
Piper PA-23 Aztec · Systems Description
Overview
This document serves as a maintenance reference for the Piper PA-23-250 Aztec equipped with a Lycoming IO-540 engine. It outlines specific service bulletins, inspection requirements, and part numbers relevant to the aircraft's exhaust and engine mount systems. The document is intended for maintenance personnel and pilots who need to ensure compliance with safety directives and maintain the aircraft's operational integrity. It includes detailed instructions on inspections and replacements necessary for safe operation, as well as part numbers for various components.
- Inspect engine mount for cracks every 50 hours after 1000 hours of service.
- Inspect exhaust system every 100 hours for cracks and leaks.
- Use engine mount PN 33261-001 for applicable serial numbers.
- Follow service bulletins for modifications and adjustments.
- Check Y-joint and clearance around the front crossover during inspections.
Document
Source
Originally published by www.acornwelding.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Systems Description
- Year
- 2010
- Pages
- 1
- File size
- 279 KB
- Publisher
- www.acornwelding.com
Common. Rarer than 17% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Piper PA-23 Aztec.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the PA-23 Aztec 250 to your watchlist and track it in one place.
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In this document
Engine Mount Inspection
The document specifies that the engine mount should be inspected for cracks every 50 hours of operation after the aircraft has reached 1000 hours of service. This is crucial for maintaining the structural integrity of the aircraft.
Exhaust System Inspection
It is required to inspect the exhaust system for cracks, flaking, burning, distortion, and leaks every 100 hours of operation. Any defects found must be addressed by replacing parts as necessary.
Part Numbers and Usable Codes
The document lists various part numbers for components related to the engine mount and exhaust systems, along with specific serial number ranges for applicability. For example, engine mount PN 33261-001 is applicable for certain serial numbers.
Service Bulletins
Several service bulletins are referenced, including SB No. 230A for alternate air modifications and SB 319 for exhaust system adjustments. Compliance with these bulletins is essential for safe operation.
Inspection Procedures
Specific inspection procedures are outlined, including checking the Y-joint at the aft cylinder stack for cracks and ensuring clearance around the front crossover to prevent rubbing on the cowling.
Safety notes
- AD 68-07-04 requires inspection of exhaust systems for defects.
- SL 462 prohibits repair and re-installation of certain engine mounts.
Full document text
Exhaust Systems Engine Mounts Carb Air Boxes Shrouds Seats Piston Turbine Radial Vintage And More... L E L N E C C E X E (toll free) 1-888-388-8803 1-780-447-5955 Fax: 1-780-447-5980 sales@acornwelding.com parts@acornwelding.com www.acornwelding.com (toll free) 1-888-388-8803 1-780-447-5955 Fax: 1-780-447-5980 sales@acornwelding.com parts@acornwelding.com www.acornwelding.com ©2010 Acorn Welding Ltd. PIPER PA-23-250 C-F Aztec with Lycoming IO-540 Engine Usable on Codes A: Use engine mount PN 33261-001 SN 27-2505 to 27-7854050 B: Use on SN 27-7054051 and on Can go down to SN 27-7654001 if dual pump kit 763 836 installed as per service letter No.351 C: For AC with SN 27-2505 to 275-3275 Be sure alternate air mod kit #757 021 has been installed as per SB No. 230A D: SN 27-2505 to 27-8054019 E: SN 27-8054020 and on AD 68-07-04 Applies to S/N's 27-2505 and on, with engine mount P/N 31215-000 & 31215-001 Inspect engine mount for cracks. Inspection required for every 50 hrs of operation after 1000 hrs time in service. AD 72-14-05 Applies to S/N's 27-2505 and on, non-turbocharged. Inspect exhaust system for cracks, flaking, burning, distortion and leaks. Replace parts if defects found. Adjust and align as per Piper SB 319. Inspection required every 100 hrs of operation. 4 19 8 18 20 17 Right Engine Left Engine Slip Joint Type 9 10 5 4 7 8 1 2 3 6 Left Engine Ball Joint Type 11 Right Engine 16 13 14 15 9 10 12 Item Part Number Description Code 1 2 3 4 5 6 7 8 9 10 11 11 12 13 13 14 14 15 15 16 17 18 19 20 - - - - - - - - - - - - - 28279- 02 FRONT OUTBOARD RIGHT ENGINE 28279-003 REAR OUTBOARD RIGHT ENGINE 28279-014 CROSSOVER RIGHT ENGINE 33420-002 STACK INBOARD RIGHT ENGINE 28278-002 FRONT OUTBOARD LEFT ENGINE 28278-003 REAR OUTBOARD LEFT ENGINE 28278-012 CROSSOVER LEFT ENGINE 33419-003 STACK INBOARD LEFT ENGINE 760-702 BRACKET ASSY HANGAR KIT 14235-002 EXHAUST STACK SUPPORT CLAMP 14235-013 SHROUD TAKEOFF CLAMP 14235-018 SHROUD TAKEOFF CLAMP 32217-000 SHROUD TAKEOFF ASSY 32275-000 SHROUD CLAMP 32275-003 SHROUD CLAMP 33178-002 SHROUD TOP 33178-004 SHROUD TOP 33178-003 SHROUD BOTTOM 33178-005 SHROUD BOTTOM 40123-100 SHROUD SAFETY CABLE 33419-002 STACK OUTBOARD LEFT ENGINE 33420-003 STACK OUTBOARD RIGHT ENGINE 31212-002 CROSSOVER LEFT ENGINE 31226-005 CROSSOVER RIGHT ENGINE 77611 GASKET 16073-004 SUPPORT ASSY LEFT HAND 16073-005 SUPPORT ASSY RIGHT HAND 31215-000 ENGINE MOUNT LEFT ENGINE 31215-001 ENGINE MOUNT RIGHT ENGINE 33261-000 ENGINE MOUNT LEFT ENGINE 33261-001 ENGINE MOUNT RIGHT ENGINE 33261-047 ENGINE MOUNT RIGHT ENGINE J-9612-8 SHOCK MOUNT 4 PER ENGINE J-7763-1 SHOCK MOUNT 4 PER ENGINE 31214-009 INDUCTION AIR BOX BOTTOM 32215-000 INDUCTION AIR BOX TOP VARIOUS SEAT BASE 0 D E D E D E D E A B C SL 462 SL 462 Inspect joints for freedom of movement and distortion. Inspect the Y-joint at the aft cylinder stack for cracks. Inspect for clearance around the front crossover. This area is usually tight but should not be rubbing on the cowling. SL462 Prohibits the repair and re-installation of Engine Mounts 31215-000 and 001.