H10SW · McDermott 214 Holdings, LLC
Revision change summary 13 → 14
Generated 2026-11-05T19:42:50.109Z
AT A GLANCE
Revision 14 changes the holder address and holder-history entries, revises two engine speed percentages, and changes the 258 RPM power-off rotor limit from a maximum to a minimum. Note 6 also changes “contain” to “contained,” without resolving its existing incomplete concentration wording. The model and serial-number eligibility remain unchanged.
Certificate H10SW; Model 214ST, serial Nos. 28101 and up.
McDermott 214 Holdings, LLC remains the named holder, but its address changes from Anchorage, Alaska, to North Richland Hills, Texas. The holder record removes the August 20, 2026 Anchorage address-change entry and the November 8, 2023 transfer from Erickson 214 Holdings, LLC to McDermott 214 Holdings, LLC. It instead lists Erickson 214 Holdings, LLC with a Central Point, Oregon address. These record edits do not establish a change in the currently named holder.
Type Certificate Holder: McDermott 214 Holdings, LLC 11 W8th Ave. Office 358 Anchorage, AK 99501 Type Certificate Holder Record: McDermott 214 Holdings, LLC, address change to Anchorage, AK on August 20, 2026 Erickson 214 Holdings, LLC, transferred TC H10SW to McDermott 214 Holdings, LLC on November 8, 2023
Revision 13, page 1 ↗Type Certificate Holder: McDermott 214 Holdings, LLC 7004 Oak Hills Court North Richland Hills, TX 76182-3284 Type Certificate Holder Record: Erickson 214 Holdings, LLC 3100 Willow Springs Road Central Point, Oregon 97502-0010
Revision 14, page 1 ↗Model 214ST, serial Nos. 28101 and up, with two General Electric CT 7-2A or T700/T2C engines (Type Certificate Data Sheet No. E8NE); maximum continuous and one-engine-inoperative continuous ratings.
In the engine operating limits table's “Gas General Speed” column, maximum continuous speed changes from 93.3% to 98.3%, while the accompanying 43,900 RPM value remains unchanged. One-engine-inoperative continuous speed changes from 101.2% to 101.7%, while 45,240 RPM remains unchanged. The other values in these rows are unchanged; the documents do not explain the percentage-only revisions.
Maximum Continuous 83% (1950 SHP) 100% (21,000) 775º C 93.3% (43,900) One Engine Inoperative 2 ½ Min Power 73.4% (1725 SHP) 100% (21,000 RPM) 915º C 103% (46,070 RPM) 30 Min Power 69.1% (1625 SHP) 100% (21,000 RPM) 878º C 101.7% (45,430 RPM) Continuous 69.1% (1625 SHP) 100% (21,000 RPM) 840º C 101.2% (45,240 RPM) (See Note 7)
Revision 13, page 1 ↗Maximum Continuous 83% (1950 SHP) 100% (21,000) 775º C 98.3% (43,900) One Engine Inoperative 2 ½ Min Power 73.4% (1725 SHP) 100% (21,000 RPM) 915º C 103% (46,070 RPM) 30 Min Power 69.1% (1625 SHP) 100% (21,000 RPM) 878º C 101.7% (45,430 RPM) Continuous (See Note 7) 69.1% (1625 SHP) 100% (21,000 RPM) 840º C 101.7% (45,240 RPM)
Revision 14, page 1 ↗Model 214ST, serial Nos. 28101 and up, power-off rotor operation.
The power-off rotor limit at 258 RPM changes from “Maximum” to “Minimum.” The associated 90% tachometer reading is unchanged, as are the 301 RPM power-off maximum and the power-on limits.
Maximum 258 RPM
Revision 13, page 2 ↗Minimum 258 RPM
Revision 14, page 2 ↗Model 214ST, serial Nos. 28101 and up, all operations below 40º F ambient temperature addressed by Note 6.
Note 6 changes “contain” to “contained.” The below-40º F condition, Phillips PFA-55MB reference and printed 0.035% minimum remain unchanged. Both issues contain incomplete wording after “nor more,” so the edit does not establish a clear revised concentration limit. No technical effect can be confidently determined from this wording change alone.
NOTE 6 For all operations below 40º F ambient temperature, all fuel used in Model 214ST helicopters must contain Phillips PFA-55MB anti-icing additive in concentration of not less that 0.035% nor more than conducted in the manner prescribed by the Rotorcraft Flight Manual.
Revision 13, page 4 ↗NOTE 6 For all operations below 40º F ambient temperature, all fuel used in Model 214ST helicopters must contained Phillips PFA-55MB anti-icing additive in concentration of not less that 0.035% nor more than conducted in the manner prescribed by the Rotorcraft Flight Manual.
Revision 14, page 4 ↗Revision 13 · 07/07/2026
Open FAA DRS ↗ · Saved source PDF ↗
Revision 14 · 09/03/2026
Open FAA DRS ↗ · Saved source PDF ↗