Heliarc Welding Service INC.
Holds 28 approved modifications, most of them for the Cessna 421 Golden Eagle. FAA spelling: Heliarc Welding Service Inc..
Approved modifications 28 · newest first
Cessna 421 Golden Eagle 8Cessna 340 5Cessna 414 Chancellor 5Cessna 320 4Cessna 401 4Cessna 402 4Cessna 411 4Cessna T-310 4Cessna 404 3Cessna T207 3Cessna T210 Turbo Centurion 3Cessna TP206 3
2004-09-23SA00556DE · Installation of a left-hand exhaust stack assembly. · T310P, T310Q, T310R
1998-01-14SA00333DE · Installation of wastegate exhaust inlet elbow. · 414, 414A
1998-01-14SA00332DE · Installation of Wastegate Exhaust Inlet elbow. · 340A
1990-11-28SA103RM · Installation of exhaust turbo connector, P/N 30477-3 · T310P, T310Q, T310R
1987-10-28SA2798NM · Installation of modified exhaust heat muffler. · 35-C33A, 36, A36
1987-06-16SA2786NM · Installation of modified exhaust system. · P210R, P210N
1987-04-15SA2767NM · Installation of replacement left exhaust heat exchanger unit. · TP206A, TP206B, TP206C
1987-01-12SA2768NM · Installation of replacement left exhaust heat exchanger unit. (T207A THRU 1984 MODEL YEAR) · T207, T207A
1986-11-26SA2765NM · Installation of replacement left exhaust heat exchanger unit. · T210M, T210N, T210K
1986-05-22SA1580NM · Installation of replacement exhaust heat exchanger. · TU206E, TU206G, TP206A
1986-05-22SA1594NM · Installation of replacement exhaust heat exchanger. · T207, T207A
1986-05-22SA1579NM · Installation of replacement exhaust heat exchanger. · T210N, T210F, T210G
1985-11-01SA2721NM · Installation of a turbocharger bypass exhaust elbow. · 421, 421A, 421B
1985-03-28SA2703NM · Installation of replacement exhaust system riser. · TP206A, TU206F, TU206E
1985-03-28SA2704NM · Installation of replacement exhaust system riser. · T207A, T207
1985-03-28SA2705NM · Installation of replacement exhaust system riser. · T210M, T210F, T210G
1985-02-04SA169RM · Installation of exhaust stacks. · 411, 421A, 421
1982-11-04SA1515NM · Crossover exhaust pipe assembly. · 421B, 421A, 421
1979-12-20SA196RM · New slip joint exhaust manifold. · 421C
1979-12-20SA193RM · New slip joint exhaust manifold. · 340, 320C, 320D
1979-12-20SA194RM · New slip joint exhaust manifold. · 414, 402B, 402A
1979-12-20SA192RM · New slip joint exhaust manifold. · T310P, T310Q, T310R
1979-12-20SA195RM · New slip joint exhaust manifold. · 404
1978-03-27SA111RM · Modify exhaust stacks by installing straight slip joint. · 500-B
1977-12-14SA108RM · Modify exhaust stacks by replacing existing bellows or seal type joints with a clampless, sealess type slip joint. · 421A, 421B, 411
1977-12-14SA109RM · Modify exhaust stacks by replacing existing bellows or seal type joints with a clampless sealess type slip joint. · 414, 402B, 402A
1977-08-17SA110RM · Modify Cessna exhaust system by replacement of the inter-cylinder expansion joints with a slip fit joint. · T310P, T310Q, T310R
1977-05-19SA102RM · Installation of exhaust turbo connector, P/N 042177-5. · 411, 411A, 421
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.