Service Bulletin No. 771A

Piper PA-23 Apache · Service Bulletins

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Overview

This document is Service Bulletin No. 771A for the Piper PA-23 Apache and other affected models. It addresses the proper application of the parking brake and provides instructions for installing a warning placard to prevent improper procedures that could lead to inadvertent aircraft movement.

Service Bulletin No. 771A is mandatory for compliance.
Improper parking brake application can lead to reduced brake effectiveness.
A warning placard must be installed on the pilot's instrument panel.
Compliance is required within the next 25 hours of operation.
The bulletin applies to multiple Piper aircraft models.
The placard part number is Piper P/N 81090-002.
Installation of the placard can be done by the owner/operator.
Notify Piper Aircraft of any ownership or address changes.

Document

Source

Originally published by clvaw-cdnwnd.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

View original at clvaw-cdnwnd.com

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Document details

Type: Service Bulletins
Year: 2011
File size: 533 KB
Publisher: clvaw-cdnwnd.com
Language: en

About this document

What is the Service Bulletin No. 771A?

The Service Bulletin No. 771A is a service bulletins for the Piper PA-23 Apache, dated 2011.

Where does the Service Bulletin No. 771A come from?

This copy of the Service Bulletin No. 771A was originally published by clvaw-cdnwnd.com and is hosted on Sprinkle as a free, searchable reference copy.

What year was the Service Bulletin No. 771A published?

The Service Bulletin No. 771A — the Piper PA-23 Apache service bulletins on file — is dated 2011.

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In this document

Purpose

The bulletin addresses improper procedures in applying the parking brake, which can result in inadvertent aircraft movement.

Instructions

Install a Parking Brake Application Warning Placard in full view of the pilot and make a logbook entry for compliance.

Compliance Time

Compliance with the bulletin is required within the next 25 hours of operation.

Material Required

One Parking Brake Application Warning Placard, Piper P/N 81090-002, is required per aircraft.

Effectivity Date

This Service Bulletin is effective upon receipt.

Approval

The technical content of this Service Document complies with applicable Federal Aviation Regulations and is FAA approved.

Safety notes

Improper application of the parking brake can lead to reduced braking effectiveness.
Aircraft may inadvertently move if the parking brake is not applied correctly.

Full document text

SB 771A provides ending effectivity for models PA-44-180 Seminole and PA-44-180T Turbo Seminole and removes PA-25. Aircraft in compliance with SB 771 are already in compliance with SB 771A. SUBJECT: Parking BrakE aPPliCaTion MoDElS aFFECTED: SErial nUMBErS aFFECTED: PA-20 Series 20-1 and Up PA-22 Series 22-1 and Up PA-23/PA-23-160 Apache 23-1 and Up PA-23-235 Apache 27-505 and Up PA-23-250 Aztec 27-1 and Up PA-23-250 (6 place) Aztec 27-2000 and Up PA-24, PA-24-250/260 Comanche Series 24-1 and Up PA-24-400 Comanche 26-1 and Up PA-30 Twin Comanche 30-1 and Up PA-39 Twin Comanche C/R 39-1 and Up PA-31P Pressurized Navajo 31P-1 and Up PA-36-285/300 Brave 36-7360001 and Up PA-36-375 Brave 36-7802001 and Up PA-44-180 Seminole 44-7995001 through 44-8195026 PA-44-180T Turbo Seminole 44-8107001 through 44-8207020 CoMPlianCE TiME: Within the next twenty-five (25) hours of operation. aPProVal: The technical content of this Service Document has been shown to comply with the applicable Federal Aviation Regulations and is FAA approved. PUrPoSE: It has been reported that improper procedures have been used in applying the parking brake. If the parking brake handle is pulled and held prior to or at the same time as the application of the airplane brakes, little or no braking or reduced brake effectiveness will occur, resulting in inadvertent movement of the aircraft. This Service Bulletin provides instructions for the installation of a “warning” placard on the Pilot’s instrument panel. The placard warns against using improper procedures in applying the Parking Brake. inSTrUCTionS: noTE: Compliance with Service Bulletin No. 771A may be accomplished by owner/operator. 1. Install in a central location on the Pilot’s instrument panel in full view of the pilot a Parking Brake Application Warning Placard Piper P/N 81090-002. 2. Make appropriate logbook entry indicating compliance with this Service Bulletin. SErViCE NO. 771a BUllETin PiPEr ConSiDErS CoMPlianCE ManDaTorY Piper Aircraft, Inc. 2926 Piper Drive Vero Beach, Florida, U.S.A. 32960 Date: September 6, 2011 (S) (M) ATA: 1130 (OVER) SErViCE BUllETin no. 771a PagE 2 of 2 MaTErial rEQUirED: Placard, Piper P/N 81090-002, one (1) each per aircraft. noTE: Placard P/N 81090-002 may be identified as any one of these P/N’s: 81090-2, 81090-02, or 683-107. All of these Piper P/N’s describe the identical placard, and the installation of any one of these part numbers provides compliance with this Service Bulletin aVailaBiliTY oF ParTS: Your Piper Service Facility. EFFECTiViTY DaTE: This Service Bulletin is effective upon receipt. SUMMarY: Please comply with the provisions of this Service Bulletin in accordance with Compliance Time, above. noTE: Please notify the factory of any address/ownership corrections. Changes should include aircraft model, serial number, current owner’s name and address. Corrections and/or changes should be directed to: PIPER AIRCRAFT, INC. Attn: Customer Service 2926 Piper Drive Vero Beach, FL 32960

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