Endorsement–Exclusion Ambiguity in Aircraft Policies: “Renter Pilot” Coverage and Flying-Club Use Creates a Fact Issue Under Texas Law

1. Introduction

Clark v. American Natl Property (5th Cir. Mar. 11, 2026) addresses a recurrent aviation-insurance problem: whether a pilot who flies under a flying-club arrangement is covered when an aircraft policy excludes “Renter Pilots,” yet an endorsement appears to contemplate “Instruction and/or Rental for which [the insured] make[s] a charge.”

The insured aircraft was leased and operated through a flying club run by Mackem Aviation, LLC. Marcus Todd Sampson, a club member, flew the aircraft into a communications tower, causing substantial property damage. The tower lessee (Agape Broadcasters, Inc.) and the landowner (James Kenneth Clark) obtained federal judgments against Sampson’s estate and then sued the aircraft insurer, American National Property & Casualty Company (ANPAC), in Texas state court to collect on those judgments. ANPAC removed, the cases were consolidated, and the district court granted summary judgment for ANPAC on the ground that Sampson was not covered.

The Fifth Circuit reversed, holding that the policy was ambiguous as applied and that the coverage dispute presented a genuine issue of material fact, making summary judgment improper.

2. Summary of the Opinion

• Holding: The policy language—particularly the relationship between Endorsement 3 (allowing “Instruction and/or Rental for which [Mackem] make[s] a charge to others”) and the base-policy “Renter Pilot” exclusion—was susceptible to more than one reasonable interpretation under Texas law.
• Result: Because the policy was ambiguous, interpretation became a fact issue and extrinsic evidence could be considered. The Fifth Circuit therefore reversed summary judgment for ANPAC and remanded.
• Key practical point: Even assuming the “Renter Pilot” exclusion applies, whether Sampson was a “Renter Pilot” (as opposed to a permitted operator within a flying club) itself presented a reasonable dispute.

3. Analysis

3.1 Precedents Cited

Erie R.R. v. Tompkins, 304 U.S. 64 (1938)

The court applied Texas substantive law because jurisdiction rested on diversity. This framing matters because Texas has specific interpretive rules for insurance policies: ambiguity is construed against the insurer, and exclusions must be stated clearly.

Hagen v. Aetna Ins. Co., 808 F.3d 1022 (5th Cir. 2015)

Cited for the standard of review: de novo appellate review of summary judgment. This underscores that the Fifth Circuit independently assessed the policy’s text and the summary-judgment record.

Tolan v. Cotton, 572 U.S. 650 (2014)

Reinforces the summary-judgment lens: evidence must be viewed in the light most favorable to the nonmovant (here, the judgment creditors). In coverage disputes where contractual language can cut both ways, this principle often becomes decisive because “reasonableness” of competing interpretations can itself preclude summary judgment.

Texas Farm Bureau Mut. Ins. Co. v. Sturrock, 146 S.W.3d 123 (Tex. 2004)

Supplies the governing definition of ambiguity: policy language is ambiguous if it is “susceptible to two or more reasonable interpretations.” The Fifth Circuit applied this test directly, concluding both sides’ readings of Endorsement 3 and the renter-pilot exclusion were reasonable.

Fireman's Fund Ins. Co. v. Murchison, 937 F.2d 204 (5th Cir. 1992)

Establishes the procedural consequence of ambiguity in this context: when a contract is ambiguous, “summary judgment is inappropriate because the interpretation of a contract is a question of fact.” The panel used this principle to move the dispute from a pure “policy interpretation” question to a fact-intensive inquiry requiring further proceedings.

Mid-Continent Cas. Co. v. Bay Rock Oper. Co., 614 F.3d 105 (5th Cir. 2010)

Provides the doctrinal bridge for the endorsement dispute: “Endorsements to a policy generally supersede and control over conflicting printed terms within the main policy.” Plaintiffs’ strongest textual argument relied on this principle—i.e., Endorsement 3 could be read to override the base policy’s “no rental/charge” limitation and, by implication, the renter-pilot exclusion’s practical effect.

Nat'l Union Fire Ins. Co. of Pittsburgh, Pa. v. Hudson Energy Co., Inc., 811 S.W.2d 552 (Tex. 1991)

The court invoked Texas’s strict approach to exclusions: “intent to exclude coverage must be expressed in clear and unambiguous language.” This canon matters because ANPAC’s interpretation depended on harmonizing provisions in a way that left the renter-pilot exclusion intact despite an endorsement that appears to permit “rental for which a charge is made.” Where text plausibly expands use but coverage limitations are not correspondingly clarified, Texas law tends to treat the resulting uncertainty as ambiguity rather than resolve it against coverage at summary judgment.

Barrow-Shaver Res. Co. v. Carrizo Oil & Gas, Inc., 590 S.W.3d 471 (Tex. 2019)

Cited for the proposition that once ambiguity is found, “consideration of extrinsic evidence is appropriate.” This is the opinion’s key procedural pivot: the court’s finding of ambiguity opened the door to evidence about how the flying club operated, how “rental” fees functioned, and what the parties to the policy understood.

3.2 Legal Reasoning

The court’s reasoning proceeds in layered fashion:

1. Coverage pathway identified: Sampson was not a named insured (not an executive officer or ownership “member”), so Plaintiffs relied on the “someone we protect” definition—i.e., a person Mackem permitted to operate the aircraft with express permission.
2. Exclusion asserted: ANPAC relied on “Who Is Not Protected,” which states bodily injury and property damage coverage does not protect “Renter Pilots,” defined as those renting the aircraft from Mackem (including student pilots).
3. Endorsement conflict framed: Endorsement 3 altered “The Use of the Aircraft” section to allow “Instruction and/or Rental for which [Mackem] make[s] a charge to others.” Plaintiffs read this as expanding liability coverage (or at least negating the insurer’s “no rental/charge” premise), while ANPAC read it as dealing with permissible use and (in ANPAC’s gloss) possibly hull coverage, not liability for renters.
4. Ambiguity found because both readings are reasonable:
   • Under Mid-Continent Cas. Co. v. Bay Rock Oper. Co., it is reasonable to read the endorsement as superseding conflicting base terms.
   • It is also reasonable, the court acknowledged, to read the endorsement more narrowly because it modifies a “Use of the Aircraft” paragraph rather than the “Who Is Not Protected” exclusion.
   The presence of two plausible constructions satisfied Sturrock’s ambiguity standard.
5. Independent ambiguity as to “Renter Pilot” status: Even if renter pilots are excluded, the record supports two reasonable characterizations of Sampson’s relationship to the aircraft:
   • Not a renter: a flying-club member using aircraft under a club agreement, arguably closer to “permitted operator” than “renter.”
   • A renter: the Aircraft Use Agreement required payment of “club aircraft rental fees,” supporting ANPAC’s argument that the transaction fits the policy’s renter-pilot definition.
6. Procedural consequence: Under Fireman's Fund Ins. Co. v. Murchison, ambiguity makes interpretation a fact question; under Barrow-Shaver Res. Co. v. Carrizo Oil & Gas, Inc., extrinsic evidence becomes admissible. Therefore summary judgment was improper.

3.3 Impact

Although the opinion is “not designated for publication,” it has practical significance—especially in aviation coverage disputes arising from flight schools, flying clubs, and aircraft sharing arrangements.

• Endorsement drafting discipline: Insurers that wish to allow “rental” use while still excluding renter-pilot liability coverage will likely need more explicit text tying “use” endorsements to liability exclusions (or expressly stating that permitted rental use does not create liability coverage for renter operators).
• Flying club vs. rental company characterization: The decision highlights that labels (“club dues” vs. “rental fees”) and operational facts (who controls dispatch, who bears risk, how fees are structured) can drive coverage outcomes. Litigants should expect discovery into club governance, fee schedules, and permission protocols.
• More cases survive summary judgment: Where an endorsement appears to broaden permissible uses (instruction/rental) while a separate provision withdraws protection from renter pilots, courts applying Texas law may be more inclined to find ambiguity—sending cases to factfinding rather than resolving them as purely textual disputes.
• Judgment-creditor collection suits: The case also illustrates that judgment creditors can litigate policy-coverage issues post-judgment, and insurers should anticipate removal and consolidated proceedings where multiple creditors seek recovery under the same policy.

4. Complex Concepts Simplified

Named insured vs. additional/omnibus insured (“someone we protect”)

The named insured is the person/entity listed on the declarations. Policies often also protect other people who use the aircraft with the named insured’s permission (sometimes called permissive users). Here, Sampson was not a named insured, so coverage hinged on whether he fit within the permission-based “someone we protect” language.

Endorsement

An endorsement is a policy amendment. Under the principle quoted from Mid-Continent Cas. Co. v. Bay Rock Oper. Co., endorsements generally control over conflicting printed terms. Disputes arise when an endorsement changes one section (e.g., “Use of the Aircraft”) but the policy also contains a separate exclusion (e.g., “Who Is Not Protected”) that may or may not conflict.

Exclusion and “clear and unambiguous” requirement

Exclusions remove coverage that might otherwise exist. Texas law, as reflected in Nat'l Union Fire Ins. Co. of Pittsburgh, Pa. v. Hudson Energy Co., Inc., requires the insurer’s intent to exclude coverage to be stated clearly. If the policy can reasonably be read to provide coverage, ambiguity may defeat summary judgment.

Ambiguity and extrinsic evidence

If policy language supports more than one reasonable meaning (Texas Farm Bureau Mut. Ins. Co. v. Sturrock), courts may consider extrinsic evidence—facts outside the four corners of the document—to determine the parties’ intent (Barrow-Shaver Res. Co. v. Carrizo Oil & Gas, Inc.). That typically prevents resolution by summary judgment (Fireman's Fund Ins. Co. v. Murchison).

Summary judgment “genuine dispute of material fact”

Summary judgment is appropriate only when no real factual dispute matters to the outcome. Here, whether the endorsement altered liability coverage and whether Sampson was a “Renter Pilot” were fact-sensitive enough to require further proceedings.

5. Conclusion

Clark v. American Natl Property reinforces a Texas-law-centered rule of decision in aviation insurance disputes: when an endorsement authorizes rental/instructional use while the policy elsewhere excludes “Renter Pilots,” and when the insured’s operational model (flying club vs. rental operation) blurs the meaning of “renting,” the policy may be ambiguous. That ambiguity can (1) defeat summary judgment, (2) require factfinding, and (3) permit the use of extrinsic evidence to resolve coverage.