| AD Number | 86-21-11 | Status | Active |
| Effective Date | February 17, 1987 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-5535 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Embraer - Empresa Brasileira de Aeronautica S.A. |
| Model(s) | EMB-120 EMB-120RT |
86-21-11 EMPRESA BRASILEIRA DE AERONAUTICA S.A.: Amendment 39-5535. Applies to Embraer Model EMB-120 series airplanes; serial numbers 12004, 12006 through 120028, 120033, and 120034; equipped with engine oil coolers, part numbers 160282-1 or 160282-2, which have accumulated more than 200 hours time-in-service; certificated in any category. Compliance is required within the next 10 hours time-in-service after the effective date of this AD, unless previously accomplished.
To prevent oil loss and in-flight engine shutdown, accomplish the following:
A. Fabricate and install on the instrument panel near the altimeter, in full view of the pilot, a placard that reads: "MAXIMUM OPERATING LIMITATION 10,000 FEET MSL."
B. Installation of engine oil cooler part number 160282-3 or subsequent, constitutes terminating action for the requirements of this AD.
This amendment becomes effective February 17, 1987, as to all persons, except those persons to whom it was made immediatelyeffective by Priority Letter AD 86-21-11, issued October 22, 1986.