BaldEagle Posted July 11, 2025 Report Posted July 11, 2025 Hi all, I'm having trouble finding a replacement spinner doubler part no. 940003-501. This is for a 1978 J. It looks like this part was installed after this airplane left production as a result of SB M20-201 2-14-78. If this part is unobtainium... what are my options? Can a doubler be riveted on, or is my only option to use the old part as a template to fabricate a replacement?
IvanP Posted July 12, 2025 Report Posted July 12, 2025 This should not be too hard to fabricate as OPP. Did you check with Frank Craford at Mooney? 1
kortopates Posted July 12, 2025 Report Posted July 12, 2025 I am not certain, but i would expect that to be a Hartzell or McCauley part depending on prop and would suggest checking with a prop shop.Sent from my iPhone using Tapatalk 2
IvanP Posted July 12, 2025 Report Posted July 12, 2025 It is listed as part of McCauley spinner for 201.
BaldEagle Posted July 14, 2025 Author Report Posted July 14, 2025 On 7/12/2025 at 10:14 AM, IvanP said: It is listed as part of McCauley spinner for 201. Thanks! My A&P thinks this is repairable, but if not I'll start chasing down McCauley / prop shops
BaldEagle Posted July 17, 2025 Author Report Posted July 17, 2025 I wasn't able to find a replacement, but fortunately a local A&P / IA who specializes in these kinds of repairs came to the rescue. I don't know what this will do to the balance / vibration but as I've had some prop work done at the same time I'm going to get it dynamically balanced anyway. Any recommendations for a shop in SoCal / Southwest...?
Pinecone Posted July 18, 2025 Report Posted July 18, 2025 It will need a good bit of weight. I would consider doing the same patch on the other side to get them closer. 1
Recommended Posts