# AD 48-09-03: Kollsman Airspeed Baffle

- Type: Airworthiness directive
- Status: Current
- Products: Don Luscombe Aviation History Foundation 8, 8A, 8B, 8C, 8D, 8E, 8F and T-8F
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 1,458 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5BAB13ED7B80B9E886256A380063B72B.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/48-09-03

## The airworthiness directive

48-09-03 LUSCOMBE: Applies to Model 8 Series Airplanes Below Serial Number 5682 Equipped With Kollsman Airspeed Instruments.

Compliance required by April 1, 1948.

To obtain more accurate airspeed readings remove small baffle LAC P/N 181112, which is attached to the fuselage at the airspeed static tube opening. Installation of this baffle provides inaccurate airspeed readings ranging from approximately +6 m.p.h. at stall to approximately +15 m.p.h. at minimum trim speed.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-694](https://openairdocs.org/tcds/A-694): Luscombe Aircraft Corporation; names 8 of 8 models: 8, 8D, 8A, 8F, 8B, 8E, 8C, T-8F

## 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: 1,458 (1,458 by airframe model, 0 by engine model)
- Makers: Luscombe 1,445, Silvaire 10, Luscombe/Pedersen 1, Luscombe/Ranger Avia 1, Luscombe/Wilder 1

Models with the most aircraft:

- [Luscombe 8A](https://openairdocs.org/model/luscombe-8a): 897 aircraft (airframe model)
- [Luscombe 8E](https://openairdocs.org/model/luscombe-8e): 326 aircraft (airframe model)
- [Luscombe 8F](https://openairdocs.org/model/luscombe-8f): 119 aircraft (airframe model)
- [Luscombe 8C](https://openairdocs.org/model/luscombe-8c): 37 aircraft (airframe model)
- [Luscombe T-8F](https://openairdocs.org/model/luscombe-t-8f): 25 aircraft (airframe model)
- [Luscombe 8B](https://openairdocs.org/model/luscombe-8b): 16 aircraft (airframe model)
- [Luscombe 8D](https://openairdocs.org/model/luscombe-8d): 14 aircraft (airframe model)
- [Luscombe 8](https://openairdocs.org/model/luscombe-8): 11 aircraft (airframe model)
- [Silvaire 8F](https://openairdocs.org/model/silvaire-8f): 10 aircraft (airframe model)
- [Luscombe/Wilder 8A](https://openairdocs.org/model/luscombe-wilder-8a): 1 aircraft (airframe model)
- [Luscombe/Ranger Avia 8A](https://openairdocs.org/model/luscombe-ranger-avia-8a): 1 aircraft (airframe model)
- [Luscombe/Pedersen T-8F](https://openairdocs.org/model/luscombe-pedersen-t-8f): 1 aircraft (airframe model)

All 13 models: https://openairdocs.org/ad/48-09-03/models.md
Every aircraft: https://openairdocs.org/ad/48-09-03/aircraft.md

Its text cites no advisory circulars or STCs.

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