50-06-02: Wing Spar Inspection
FAA order 50-06-02 is an airworthiness directive. The FAA's subject line: Wing Spar Inspection. It names Boeing 75, Boeing A75 Stearman Kaydet, Boeing B75 Stearman Kaydet, Boeing D75, Boeing E75 Stearman Kaydet, Boeing IB75: about 1,644 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: airframe structure.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Boeing Airplane Company, Wichita Division
- Models
- 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18), A75L3, A75L300, A75N1 (Army PT-17, -17A, Navy N2S-1, -4), B75 (Navy N2S-5), B75N1 (Navy N2S-3), D75N1 (Army PT-27), E75 (Army PT-13D, Navy N2S-5, PT-13D/N2S-5), E75N1 (Army PT-13D, Navy N2S-5, PT-13D/N2S-5), IB75A
- On this site
- Boeing 75 18 registered
Boeing A75 Stearman Kaydet 979 registered
Boeing B75 Stearman Kaydet 257 registered
Boeing D75 35 registered
Boeing E75 Stearman Kaydet 343 registered
Boeing IB75 12 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (774 characters)
50-06-02 BOEING: Applies to All Model 75 Series Aircraft.
Compliance required at each annual inspection. For military aircraft, compliance also required prior to original certification.
Remove the center section gas tank and inspect both front and rear spars for cracks, checks and warping. Defective spars should be replaced or repaired in accordance with CAM 18. Ascertain that all drain holes are open.
Repeated removal of the tank at each annual inspection is not necessary, if after accomplishment of the items mentioned above, the gap between the gas tank and the upper surface of the center section is sealed by doping on grade A fabric tape, or equivalent sealing means, to prevent moisture entering the tank compartment.
This supersedes AD 45-51-01.
Related safety bulletins advice on the same designs, not orders
2017-10-10SW-17-28 · Fuel Quantity Indicator
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/50-06-02.json · aircraft systems.