U.S. Depaftment of Tiiansportation Federal Aviation Administration Circular Subject: MAINTEMNCE PEXXXAM APPROVAL Date: g/26/83 ACNo: 135-58 FOR CARRY- CXYGEN E!QUIPMENT Initiated by: Am-300 Change:
FOR MEDICAL PURFOSES 1 PURPOSE. This advisory circular is to provide a means whereby air taxi operators may submit a maintenance program to comply with Part 135, Section 135.91, of the Federal Aviation Regulations.
2 CANCELLATION. Advisory Circular 13505A, dated November 23, 1976, is l cancelled. ‘ 3 . BACKGRWND. Section 135,91(a)(l)(ii) requires that equipment used for storage, generation I or dispensing of oxygen,. and carried aboard aircraft, when owned by the certificate holder, must be maintained in accordance with the - . _ certificate holder's approved maintenance program. FAR Part 135 does &t prescribe specific rules for mintenance and test of pressure cylinders;
however, when approved by the Administrator, the provisions of Operations Specifications are rules which require precisely the sam consideration as the Federal Aviation Regulations. In exercising this authority, the Administrator has, in the interest of safety, adopted the rules and regulations of the Department of Transportation (DOT) as an acceptable method for controlling the hydrostatic and life limits of pressure cylinders through Operations Specifications.
4 GENERAL. Air taxi operators wishing to submit a maintenance program rkuired bv Section 135.91 should be encouraaed to contact their certificate holding dikrict office prior to developmkof their program. In this mnner, both the operator and the Federal Aviation Administration (FAA) inspector will become mutually aware of the elements necessary for FAA approval.
5 APPLICATION OF 49 CFR, SECTION 173.301(c). Section 173.301(c), Retest of Container, states: "A container for which prescribed periodic retest has become due mst not be charged and shipped until such retest has been properly made."
a. Pressure cylinders used as aircraft equipmnt which remain charged or partially charged on the due date of their hydrostatic test may remain in service beyond the test date providing that the cylinder is retested prior to its next full or partial refilling.
b Standards used for approval of pressure cylinders are those established by the DOT, Research and Special Programs Administration, Materials Transportation Bureau. The manufacturing standards and maintenance specifications that pressure cylinders mst met to be eligible for transportation purposes are prescribed in 49 CFR, Chapter 1, Parts 100-199.
AC 13505B g/26/83 6 PREPARATION OF OPERATICNS SPECIFICATIONS, FAA FORM 1014, (OMR-040R0075).
Air taxi operators wishing to submit a maintenance program for carry-on oxygen equipnrent should submit an application to amend their Operations Specifications.
Operations Specifications are prepared by the operator using FAA Form 1014. The format shown in Figure 1 should be used for amending Operations Specifications relating to the inspection and maintenane of pressure cylinders. It is not intended to list all pressure cylinders on one page. Figure 1 illustrates the various systems which use pressure cylinders and how they will be listed when entering them in the proper sequence and ATA chapter of the approved Operations Specifications. (An example of an acceptable application for mndment of Operations Specifications is shcrwn in Figure 2.) Before approval of a maintenance program, the inspector reviewing the program will consider:
a. If the schedule for the performance of the inspection and mintenance, whether it be by the time in service, calendar time, system cycles, or by combination, is adequate and in accordance with the provisions of 49 CFR, Part 173, currently in effect. , b prq& If the instructions and procedures for the conduct of the maintenance including the necessary checks and tests, are in sufficient detail for the maintenance personnel to correctly perform the maintenance without further guidance.
7 . REWI~ANDAPPROVAL. Operations Specifications - Aircraft.Maint.enanqz - -.
Part D, will be reviewed for accuracy and completeness. -rations Specifications ~llsiy be approved only by those inspectors authorized to perform I such functions. (An example of an acceptable -rations Specification is shown in Figure 1.)
J. Pontecorvo Act&g Director of Airworthiness Par 6
g/26/83 AC 135~5B Appendix 1 FIwm 1. OFERATICNS SPECIFICATICNS - Aircraft Maintenance
UNITED STATES OF AMERICA
DEPARTMENT OF TRANSPORTATION Form Approved.
OMB No. OI-ROO75 Part D
FEDERAL AVIATION ADMINISTRATION
WASNINGTON
OPERATIONS SPECIFICATIONS Aircraft Maintenance Overhaul Inspection & Fkriod Check Feriod Oxyqen, Chapter 35 Bottle - Oqgen Portable (DOT-3A) 5 or 10 years* (See 49 CFR, Section 173,34(e)(ll), (e)(14), and (e)(lSL) .
Bottle - Oxygen Crew (DOT-3E3T) 3 years* Bottle - Oxygen Passenger (DOT-3HT) 3 years* (See 49 CFR, Section 173,34(e)(13).)
*Inspections, hydrostatic tests, and life limits will be accaqlished as set forth in Part 173, Chapter 1, Subtitle B of 49 CFR currently in effect.
Effective date FAA Form 1014 (2-72) 1
AC 135~5B Appendix 1 g/26/83 FtlxxJm2. OPEEATICNS SpM3IF'ICATI(NS - Reverse
FEDERAL AVNTION ADMINISTRATION Washington, D. C.
Operating Certificate No. J&!&2---- AE a, Inc. ________________________________________-------------------------------------------------------- hereby makes application for amendment of tllc Opcrtttions Specifications appearing on the reverse side hereof, IIS follows:
TO establish an approved maintenance program for carry-on olzygen e+pent for medical purposes for aircraft operated by ABC Air, Inc.
Reasons and supporting data (if insufficient space attach additional page):
To comply with Section 135.91.
, _ I CEI~TIYY that the statements submitted in connection herewith are true and that I am duly authorized to make this application on behalf of the applicant.
Date !“W 5~ 1983 _ mm- _a-_-_ _-___-_-_-_-__--_-__------------------- (to be si~~-~~--~~~~~c-~~)_------_--___--- *a- ---------------- (Signeture) President _____________ -___----_--_-_-------------------------------------- (Title) I SSPECTOH’S RECOMMESDATIOSS:
The Operations Specifications set forth on the reverse side hereof are --------------------____^_______________-------------- Amc!!dmcn t No. -____-----------_-------------- By dire&on of the Administrator:
Effective date _______________ ---------_---------------------------------- (Signature) Supcrscdcs specifications da ted ______ _. ___________________________ . --- -- .-. - -- - --------_----_-----..- __---_-------------------------------------- (Ti tlei Received for the applicant by:
-_---------_-------------------------------------------------------------- (Signature) Date ________________________________________-------- -_ ------------------------------------------------------------------ (Title) 2 * US. OOVE~EIVT PRXHTINO OFFICE: 1983 - 421-428 - 313/3336