# Piper Service Letter 807: Revision A

- Rights: © Piper. Filed by the FAA in regulations.gov docket FAA-2020-1006; AD 2021-25-11 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Piper Service Letter 807](https://openairdocs.org/service-documents/piper/sl-807.md)
- Title as filed: Piper Service Letter No. 807A
- Pages: 1
- PDF: https://openairdocs.org/files/sha256/54/82/54829c2a156efd7a098c3e6ada7dcf7f51ef07c757c74369ca9a7367d7f12f40
- Page: https://openairdocs.org/service-documents/piper/sl-807/file/54829c2a156e

## Text

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### Page 1 (OCR)

SERVICE  No.  807A
PIPER  LETTER
Piper Aircraft Corporation  Lock Haven, Pennsylvania, U.S.A.
September 8, 1977  M
(Supersedes Piper Service Letter No. 807 dated May 18, 1977.)
Subject:  Stabilator Outboard Nose Rib Installation
Reason for Revision: Revised Serial Numbers Affected section and addition of NOTE, below.
Models Affected:  Serial Numbers Affected:
PA-23-250 (6 Place) Aztec 'F"  ... 27-7654001 to 27-7754041 inclusive (see NOTE,
below)
NOTE:
This modification does not apply to aircraft that have had original stabilators
replaced with Stabilators, Part Number 15658-30 (left) and 15658-31 (right).
Compliance Time: At owner/operator's discretion, recommended at the next regularly
scheduled inspection (Annual, 100 Hr. or Programmed Inspection Event, whichever applies.)
Affected aircraft having complied with the previous issue of this Service Letter are not
affected by this revised issue.
Purpose:  An additional nose rib has been incorporated in current production Aztec "F"
stabilators to strengthen the tip rib mounting of the stabilator tube/weight assembly. This
product refinement item is being offered to owners and operators of the above referenced
aircraft via this Service Release, which announces the availability of a field installation kit
containing material and instructions to accomplish the above described stabilator product
refinement. Each kit contains sufficient material (rib, hardware, etc.) to modify one
stabilator.
Instructions: Contained in Piper Kit No. 761 141, Stabilator Outboard Nose Rib Installation.
Material Required: One (1) each per Stabilator (i.e., two kits per aircraft) Piper Kit No.
761 141, Stabilator Outboard Nose Rib Installation @ suggested unit list price $ 13.62A.
Availability of Parts: Your Piper Field Service Facility.
Effectivity Date: This Service Release is effective upon receipt.
Summary: Please contact your Piper Field Service Facility to obtain the product refinement
installation described herein. Installation time can be reduced by coordinating this modifi-
cation with a regularly scheduled inspection/maintenance interval.

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