# AD 85-10-02: Engine Induction Airbox - Type: Airworthiness directive - Status: Current - Products: Cessna 206, 207, 207A, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M and 15 more - Effective: June 20, 1985 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-5064 - Registered aircraft: 1,982 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A0804D2EDFD092F6862569BA004BDD61.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/85-10-02 ## The airworthiness directive 85-10-02 CESSNA: Amendment 39-5064. Applies to Models 206, U206, U206A, U206B, U206C, U206D, U206E, U206F, and U206G (R/Ns 206-0001 thru U20606065); P206, P206A, P206B, P206C, P206D, and P206E (S/Ns P206-0001 thru P20600647); 207 and 207A (S/Ns 20700001 thru 20700681); 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, and 210N (S/Ns 21058221 thru 21064226) airplanes certificated in any category which are equipped with Continental Model IO-520-( ) engines. Compliance: Required within 100 hours time-in-service after the effective date of this AD and each 100 hours time-in-service thereafter, until modified in accordance with paragraph (b) of the AD. To eliminate the possibility of engine power reduction due to ingestion of pieces of a failed engine induction airbox outboard duct, accomplish the following: (a) Visually inspect the engine induction airbox outboard duct lower skin for cracks. (b) If cracks are found, prior to further flight, either replace theinduction airbox outboard duct with a Cessna Part Number 1250705-8 duct or repair the skin of the existing duct in accordance with the repair procedures of FAA Advisory Circulars AC 43.13-1A and AC 43.13-2A using material at least .040 inches thick. (c) An equivalent means of compliance with this AD may be used if approved by the Manager, Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209. Cessna Single Engine Customer Care Service Information Letter SE84-20 dated November 2, 1984, covers the subject matter of this AD. This amendment becomes effective on June 20, 1985. ## Affected data sheets (3) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A4CE](https://openairdocs.org/tcds/A4CE): Textron Aviation Inc.; names 15 of 29 models: U206, P206C, P206E, 206, P206A, U206C, U206E, U206B… - [TCDS 3A21](https://openairdocs.org/tcds/3A21): Textron Aviation Inc.; names 10 of 28 models: 210J, 210D, 210M, 210H, 210E, 210L, 210G, 210K… - [TCDS A16CE](https://openairdocs.org/tcds/A16CE): Textron Aviation Inc.; names 2 of 4 models: 207, 207A ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 1,982 (1,982 by airframe model, 0 by engine model) - Makers: Cessna 1,982 Models with the most aircraft: - [Cessna U206G](https://openairdocs.org/model/cessna-u206g): 347 aircraft (airframe model) - [Cessna 210L](https://openairdocs.org/model/cessna-210l): 234 aircraft (airframe model) - [Cessna U206F](https://openairdocs.org/model/cessna-u206f): 230 aircraft (airframe model) - [Cessna 210D](https://openairdocs.org/model/cessna-210d): 123 aircraft (airframe model) - [Cessna 210M](https://openairdocs.org/model/cessna-210m): 122 aircraft (airframe model) - [Cessna 210N](https://openairdocs.org/model/cessna-210n): 81 aircraft (airframe model) - [Cessna 207A](https://openairdocs.org/model/cessna-207a): 75 aircraft (airframe model) - [Cessna 210E](https://openairdocs.org/model/cessna-210e): 74 aircraft (airframe model) - [Cessna 210J](https://openairdocs.org/model/cessna-210j): 56 aircraft (airframe model) - [Cessna 206](https://openairdocs.org/model/cessna-206): 55 aircraft (airframe model) - [Cessna P206](https://openairdocs.org/model/cessna-p206): 53 aircraft (airframe model) - [Cessna U206](https://openairdocs.org/model/cessna-u206): 52 aircraft (airframe model) - [Cessna 210K](https://openairdocs.org/model/cessna-210k): 50 aircraft (airframe model) - [Cessna U206C](https://openairdocs.org/model/cessna-u206c): 47 aircraft (airframe model) - [Cessna U206B](https://openairdocs.org/model/cessna-u206b): 43 aircraft (airframe model) - [Cessna 207](https://openairdocs.org/model/cessna-207): 40 aircraft (airframe model) - [Cessna 210G](https://openairdocs.org/model/cessna-210g): 39 aircraft (airframe model) - [Cessna 210H](https://openairdocs.org/model/cessna-210h): 38 aircraft (airframe model) - [Cessna 210F](https://openairdocs.org/model/cessna-210f): 34 aircraft (airframe model) - [Cessna P206A](https://openairdocs.org/model/cessna-p206a): 31 aircraft (airframe model) All 30 models: https://openairdocs.org/ad/85-10-02/models.md Every aircraft: https://openairdocs.org/ad/85-10-02/aircraft.md ## Related documents - [AC 43.13-1B CHG 1 Ed Update](https://openairdocs.org/ac/43.13-1): Acceptable Methods, Techniques, and Practices—Aircraft Inspection and Repair. Cited as AC 43.13-1A in the AD's requirements - [AC 43.13-2C](https://openairdocs.org/ac/43.13-2): Acceptable Methods, Techniques, and Practices – Aircraft Alterations. Cited as AC 43.13-2A in the AD's requirements --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.