SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-44 Seminole · Airworthiness Directives
Overview
This document is a Schedule of Airworthiness Directives issued by the Civil Aviation Safety Authority of Australia, specifically addressing the Piper PA-44 Seminole series aeroplanes. It outlines a mandatory modification requirement for the nose landing gear drag link to enhance safety and prevent potential failures. The directive includes specific model applicability, compliance timelines, and detailed instructions for the modification kit installation. It is intended for aircraft maintenance personnel and operators of the affected Piper PA-44 models, ensuring they are aware of the necessary actions to maintain airworthiness and safety standards.
- Modification required for nose landing gear drag link on PA-44 models.
- Affected serial numbers for PA44-180: 44-7995001 to 44-8195026.
- Affected serial numbers for PA44-180T: 44-8107001 to 44-8207005.
- Install Piper Part No. 764-378 modification kit including NAS464P4-27 bolt.
- Compliance required within 100 hours after 15 September 1994.
Document
Source
Originally published by services.casa.gov.au. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Airworthiness Directives
- Year
- 1994
- Pages
- 1
- File size
- 11 KB
- Publisher
- services.casa.gov.au
Most owners only have the POH. Here's the essential set for the Piper PA-44 Seminole.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
More Piper PA-44 Seminolemanuals & documents
See all 37 →- PILOT’S CHECKLISTPilot's Operating Handbook
- Multi-Engine Study GuideOther Documents
- Type Acceptance Report TAR 98/04 Rev 3Parts Catalog
- NSA Master Checklist Seminoles Fuel Injected Rev 12Checklist
- SERVICE BULLETIN NO. 1354Service Bulletins
- PA 44 Seminole Checklist (2126Y)Checklist
- Piper Seminole Normal ChecklistPilot's Operating Handbook
- Piper Seminole Training SupplementWeight And Balance
- Minimum Equipment List as a Mechanism of Motion in MIRCE MechanicsOther Documents
- PIPER PA-44 SEMINOLEChecklist
- TYPE-CERTIFICATE DATA SHEET No. EASA.IM.A.232 For Piper PA-44Pilot's Operating Handbook
- Garmin G1000 NXi Pilot’s Guide for the Piper PA-44-180 SeminoleV Speeds Reference
In this document
Applicability
The directive applies to specific models of the Piper PA-44 Seminole, including the PA44-180 and PA44-180T. The serial numbers affected range from 44-7995001 through 44-8195026 for the PA44-180 and from 44-8107001 through 44-8207005 for the PA44-180T.
Requirement
Operators are required to incorporate the Nose Landing Gear Modification Kit, identified as Piper Part No. 764-378. This kit includes a close tolerance bolt (NAS464P4-27), four bearings, and other necessary hardware for installation on the drag link assembly.
Compliance
The compliance deadline for this modification is within 100 hours of time in service after 15 September 1994. This timeline is critical to ensure that all affected aircraft are modified promptly to prevent potential failures.
Background
The directive was issued in response to reports of collapsed nose gear on the affected aircraft models. Investigations revealed that the failure of the AN4-20 bolt connecting the lower drag link to the upper drag link was a significant factor in these incidents.
Safety notes
- Failure of the AN4-20 bolt can lead to nose gear collapse, posing safety risks.
Full document text
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-44 (Seminole) Series Aeroplanes AD/PA-44/14 Nose Gear Drag Link 10/94 Applicability: Model Serial Numbers PA44-180 44-7995001 through 44-8195026 PA44-180T 44-8107001 through 44-8207005 Requirement: Incorporate Nose Landing Gear Modification Kit, Piper Part No. 764-378. Accomplish this action in accordance with the procedures and sketches included with the instructions to the above referenced kit. Note 1: The modification kit referenced above consists of a close tolerance bolt (NAS464P4-27), four bearings, and other associated hardware for installation on the drag link assembly. This NAS464P4-27 bolt replaces the AN4-20 bolt used to connect the upper and lower drag links. Note 2: FAA AD 94-14-14 Amdt 39-8962 and Piper Service Letter 988 refer. Compliance: Within 100 hours time in service after 15 September 1994. Background: The FAA received reports of collapsed nosegear on the affected aircraft. In particular, these reports reveal failure of the bolt (AN4-20) connecting the lower drag link of the nosegear to the upper drag link.