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Safety Assessment of Transport Airplanes in Commercial Service
- Aerospace Standard
- ARP5150A
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This document describes guidelines, methods, and tools used to perform the ongoing safety assessment process for transport airplanes in commercial service (hereafter, termed “airplane”). The process described herein is intended to support an overall safety management program. It is associated with showing compliance with the regulations, and also with assuring a company that it meets its own internal standards. The methods identify a systematic means, but not the only means, to assess ongoing safety.
While economic decision-making is an integral part of the safety management process, this document addresses only the ongoing safety assessment process. To put it succinctly, this document addresses the “Is it safe?” part of safety management; it does not address the “How much does it cost?” part of the safety management.
This document also does not address any specific organizational structures for accomplishing the safety assessment process. While the nature of the organizational structure is significant to the quality of a safety program, this document focuses on the functions to be accomplished and does not attempt to define what the structure should be. The intent is to leave the greatest amount of flexibility to the organizations that use this document.
Rationale
Some information was not included in the first version that we now have material to include, plus some corrections and clarifications to existing text. The addition of sources of information publicly available on the internet was added. Also, all aviation companies need to include the Safety Management System process in their safety process and therefore some of that material needs to be added.
Recommended Content
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| Aerospace Standard | FLIGHT DECK PANELS, CONTROLS, AND DISPLAYS |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
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| Table 1 | Database access | |
| Table 2 | Safety related conferences | |
| Table 3 | Safety related websites | |
| Table A1 | Aircraft manufacturers significant failures list example | |
| Table A2 | Aircraft manufacturers failure condition by system list example | |
| Unnamed Dataset 12 | ||
| Unnamed Dataset 13 | ||
| Unnamed Dataset 14 | ||
| Unnamed Dataset 15 | ||
| Unnamed Dataset 16 | ||
| Unnamed Dataset 17 | ||
| Table A3 | Airline Classification List Example | |
| Table A4 | Significant failure conditions list to airline significant events cross reference | |
| Unnamed Dataset 20 | ||
| Unnamed Dataset 21 | ||
| Unnamed Dataset 22 | ||
| Unnamed Dataset 23 | ||
| Table B1 | Hazard severity categories | |
| Table B2 | AC 25-1309A failure conditions | |
| Table B3 | AMC 25.1309 failure categories | |
| Table B4 | CAAM hazard levels | |
| Table B5 | Engine manufacturer classification system example | |
| Table B6 | Operator classification example | |
| Table B7 | MIL-STD-882 e hazard probability levels | |
| Table B8 | AC 25.1309-1A probability terms | |
| Table B9 | AMC 25.1309 probability terms | |
| Table B10 | Engine manufacturer probability categories example | |
| Table B11 | Operator probability categories example | |
| Table C1 | Rare event approximation to exact comparison | |
| Table C2 | Confidence factors to adjust observed probability | |
| Table C3 | Example results for varying ages | |
| Table C4 | Cumulative fleet risk illustration | |
| Table D1 | Root cause disposition chart format | |
| Table D2 | Action item list format | |
| Table D3 | Example rotor blade investigation event tree disposition status report table | |
| Table E1 | Beta (slope) versus aging characteristics | |
| Table E2 | Example no. 1 engine service times | |
| Sorted Table E2 | Example no. 1 engine service times | |
| Table E3 | Example no. 1 median rank results | |
| Table E4 | Table of median ranks | |
| Table E5 | Example of no. 2 engine service times | |
| Table E6 | Example no. 2 order numbers | |
| Table E7 | Example no. 2 resorted order numbers | |
| Table E8 | Example no. 2 median rank results | |
| Table F1 | Drive shaft diameter distribution example | |
| Table F2 | Simulation of crack propagation lives, lognormal distribution, log mean = 4.0, log standard deviation = 0.4 | |
| Table F3 | Simulation of bearing failure times, Weibull distribution, Weibull char life = 18000, slope = 1.5 | |
| Table F4 | Simulation of bird ingestion events, exponential distribution, lambda = 2.5e-06 events per hour | |
| Table F5 | Input parameters for shaft and bore example | |
| Table F6 | Shaft and bore example, simulation of shaft - bore interference | |
| Table F7 | Simulation of engine time-on-wing | |
| Table G1 | Reliability growth analysis and Weibull analysis characteristics | |
| Table G2 | Example texting data | |
| Table G3 | Crow-AMSAA predictions | |
| Table G4 | Growth rate slope characterizations | |
| Unnamed Dataset 62 | ||
| Unnamed Dataset 63 | ||
| Table O1 | AC39-8 CAAM guidelines | |
| Table O2 | TARAM risk measures | |
| Table O3 | TARAM risk guidelines | |
| Table O4 | EASA long and short term acceptable risk criteria |
Issuing Committee
Reference
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