Airworthiness Directive · Amendment 39-11715 · Maule Aerospace Technology, Inc. M-4, M-5, M-6, M-7, MX-7, and MXT-7 Series Airplanes and Models MT-7-235 and M-8-235 Airplanes
Maule Aerospace Technology, Inc. M-4, M-5, M-6, M-7, MX-7, and MXT-7 Series Airplanes and Models MT-7-235 and M-8-235 Airplanes
This AD affects the following airplane models and serial numbers, certificated in any category:
| Models | Serial numbers |
|---|---|
| MX-7-160C | 34001C. |
| M-7-260C | 30001C through 30004C, 30007C through 30011C, 30013C, and 30014C. |
| M-7-420AC | 29001C. |
| MX-7-180C | 28001C through 28011C. |
| MT-7-260 | 27001C and 27003C. |
| M-7-260 | 26002C through 26007C. |
| M-7-235C | 25001C through 25037C, 25040C, 25041C, and 25044C. |
| M-7-235A | 24001C. |
| M-7-235B | 23001C through 23056C, 23058C, and 23059C. |
| MX-7-180B | 22001C through 22016C. |
| MXT-7-180A | 21001C through 21067C, 21070C, 21072C, 21076C, 21077C, 21079C, and 21081C. |
| MX-7-180A | 20001C through 20063C. |
| MX-7-160 | 19001C through 19046C. |
| MXT-7-160 | 17001C through 17008C. |
| MT-7-235 | 18001C through 18041C, 18044C, and 18047C. |
| M-8-235 | 15001C through 15005C. |
| MXT-7-180 | 14000C through 14095C. |
| MX-7-180 | 11066C through 11097C. |
| MX-7-235 | 10081C through 10122C. |
| M-7-235 | 4078C, 4080C, 4083C, 4086C, and 4089C through 4132C. |
| M-6-235 | 7508C, 7510C, 7516C, and 7518C through 7521C. |
| Models | Serial numbers |
|---|---|
| Bee Dee M-4 | 3 through 14. |
| M-4 | 3 through 94 (Bee Dee: 3-14; and M-4: 15-94). |
| M-4C | 1C through 11C. |
| M-4S | 1S, 2S, and 3S. |
| M-4T | 1T, 2T, and 3T. |
| M-4-210 | 1001 through 1045. |
| M-4-210C | 1001C through 1117C. |
| M-4-220C | 2001C through 2190C. |
| M-4-220S | 2001S. |
| M-4-180C | 3001C through 3006C. |
| M-5-200 | 8015C and 8022C. |
| M-5-210C | 6001C through 6206C. |
| M-5-220C | 5001C through 5057C. |
| M-5-235C | 7001C through 7248C, 7250C through 7353C, A7354C, A7355C, 7356C, 7357C, A7358C, 7359C, A7360C, A7361C, 7362C through 7365C, A7366C, A7367C, 7368C through 7376C, 7445C, 7451C, 7460C, 7467C, 7470C, 7478C through 7480C, 7484C through 7487C, and 7515C. |
| M-5-180C | 8001C through 8014C, 8016C through 8019C, 8021C, 8023C through 8042C, 8044C through 8064C, and 8068C through 8094C. |
| M-5-210T | 9001C through 9010C. |
| M-6-235 | 7249C, 7356C, 7379C through 7444C, 7446C through 7450C, 7452C through 7459C, 7461C through 7466C, 7468C, 7469C, 7471C through 7475C, 7488C through 7507C, 7509C, 7511C through 7514C, and 7517C. |
| M-6-180 | 8020C, 8043C, and 8065C through 8067C. |
| M-7-235 | 4001C through 4077C, 4079C, 4081C, 4082C, 4084C, 4085C, 4087C, and 4088C. |
| M-7-235 | 12001C and 12002C. These airplanes were manufactured as Model M-7-235 airplanes and then modified in accordance with STC SA2661SO. This modification changed the model designation of these airplanes to M-7-420. |
| MX-7-235 | 10001C through 10080C. |
| MX-7-180 | 11001C through 11065C. |
| MX-7-420 | 13001C through 13003C. |
This amendment adopts a new airworthiness directive (AD) that applies to certain Maule Aerospace Technology, Inc. (Maule) M-4, M-5, M-6, M-7, MX-7, and MXT-7 series airplanes and Models MT-7-235 and M-8- 235 airplanes. This AD requires you to inspect all Nicopress<SUP>TM</SUP> sleeve terminal ends for correct size compression, with adjustment or replacement, as necessary. This AD results from a report of the rudder cable slipping out of the Nicopress<SUP>TM</SUP> sleeve while one of the affected airplanes was landing. The actions specified by this AD are intended to detect and correct improper crimping of the Nicopress<SUP>TM</SUP> sleeve, which could cause a control cable to slip from the sleeve. This could result in loss of rudder, elevator, aileron, or flap control.
To address this problem, accomplish the following:
| Action | Compliance time | Procedures |
|---|---|---|
| Inspect all Nicopress TM sleeve terminal ends for correct size compression. | For Group 1 airplanes: Within the next 25 hours time-in-service (TIS) after May 30, 2000 (the effective date of this AD); and | Accomplish in accordance with the ACTION TO BE TAKEN AND TOOLS REQUIRED section of Maule Mandatory Service Bulletin No. 20, dated December 27, 1999. |
| For Group 2 airplanes: Within the next 100 hours TIS after May 30, 2000 (the effective date of this AD). | ||
| Adjust or replace any terminal compressions that are outside of the limits specified in the service information. | Prior to further flight after the inspection required by this AD. | Accomplish in accordance with the ACTION TO BE TAKEN AND TOOLS REQUIRED section of Maule Mandatory Service Bulletin No. 20, dated December 27, 1999. |
| Do not install a Nicopress TM sleeve without assuring that the terminal compressions are within the limits specified in the service information. | As of May 30, 2000 (the effective date of this AD). | Accomplish in accordance with the ACTION TO BE TAKEN AND TOOLS REQUIRED section of Maule Mandatory Service Bulletin No. 20, dated December 27, 1999. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
