Airworthiness directives › 2021-17-08
AD 2021-17-08 Airworthiness Directives; The Boeing Company Airplanes
Models named: 737-800, -900ER series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 737-800 and -900ER series airplanes, certificated in any category, with ViaSat In-Flight Connectivity (IFC) System Antenna Provisions installed in accordance with Astronics Armstrong Aerospace Supplemental Type Certificate (STC) ST04096CH.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Before further flight, remove external equipment (including radome, antenna, and associated structure) that was installed in accordance with STC ST04096CH. Do the removal in accordance with steps 1 through 9 of paragraph 5.2.1., of Astronics Armstrong Aerospace Engineering Order, “ViaSat In-Flight Connectivity (IFC) System DE-MOD Boeing 737-800/-900ER Series Aircraft,” Document No. EO23-9642-02, Revision B, dated April 25, 2016.
Unsafe condition
This AD was prompted by reports that several of the fittings that provide attachment between the radome and fuselage were cracked to the point of failure. The FAA is issuing this AD to address cracked fittings, which could result in loss of the radome and antennae, and consequent damage to the tail and damage to the fuselage in the vicinity of the radome, which could reduce the ability of the flightcrew to maintain safe flight and landing of the airplane.
Affected ADs
None.
Read the original on the Federal Register →
You just looked this one up by hand
TrackAD holds all 12,278 of them and matches them against the aircraft you actually look after — airframe, engine, propeller and appliances in one pass — then works out what falls due and when.
- Bring your existing list in from a spreadsheet Paste the rows straight out of Excel. Headers like C/W Date and N/A are read for you.
- A copy that works when this does not One file. No internet, no login, no this software running. For the morning something has to be produced and the computer is not cooperating.
- $5 a month, or $50 a year Up to 50 aircraft on either.
Look round a real shop first Start free
The demonstration shop is eleven real aircraft with a year of work behind them. No account needed.
The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1